./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:17:05,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:17:05,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:17:05,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:17:05,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:17:05,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:17:05,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:17:05,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:17:05,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:17:05,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:17:05,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:17:05,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:17:05,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:17:05,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:17:05,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:17:05,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:17:05,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:17:05,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:17:05,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:17:05,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:17:05,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:17:05,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:17:05,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:17:05,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:17:05,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:17:05,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:17:05,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:17:05,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:17:05,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:17:05,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:17:05,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:17:05,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:17:05,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:17:05,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:17:05,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:17:05,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:17:05,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:17:05,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:17:05,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:17:05,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:17:05,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:17:05,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 19:17:05,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:17:05,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:17:05,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:17:05,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:17:05,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:17:05,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:17:05,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:17:05,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:17:05,489 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:17:05,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 19:17:05,490 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:17:05,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:17:05,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:17:05,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:17:05,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:17:05,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:17:05,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:17:05,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:17:05,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-12-06 19:17:05,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:17:05,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:17:05,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:17:05,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:17:05,687 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:17:05,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-06 19:17:05,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/1c8164d97/eeab691e353f480cb7c563e1e0ad6169/FLAGb5aa4e55d [2021-12-06 19:17:06,231 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:17:06,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-06 19:17:06,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/1c8164d97/eeab691e353f480cb7c563e1e0ad6169/FLAGb5aa4e55d [2021-12-06 19:17:06,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/1c8164d97/eeab691e353f480cb7c563e1e0ad6169 [2021-12-06 19:17:06,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:17:06,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:17:06,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:17:06,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:17:06,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:17:06,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:17:06" (1/1) ... [2021-12-06 19:17:06,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c533e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:06, skipping insertion in model container [2021-12-06 19:17:06,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:17:06" (1/1) ... [2021-12-06 19:17:06,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:17:06,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:17:06,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-06 19:17:07,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:17:07,060 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:17:07,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-06 19:17:07,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:17:07,141 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:17:07,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07 WrapperNode [2021-12-06 19:17:07,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:17:07,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:17:07,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:17:07,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:17:07,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,224 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1583 [2021-12-06 19:17:07,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:17:07,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:17:07,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:17:07,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:17:07,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:17:07,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:17:07,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:17:07,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:17:07,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (1/1) ... [2021-12-06 19:17:07,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:17:07,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:17:07,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:17:07,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:17:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-12-06 19:17:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-12-06 19:17:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:17:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-12-06 19:17:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-12-06 19:17:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-12-06 19:17:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-06 19:17:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-06 19:17:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-12-06 19:17:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-12-06 19:17:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-12-06 19:17:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:17:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:17:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-12-06 19:17:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-12-06 19:17:07,525 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:17:07,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:17:07,610 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,654 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-06 19:17:07,654 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-06 19:17:07,695 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,707 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-06 19:17:07,707 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-06 19:17:07,713 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,714 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,717 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,725 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,733 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,735 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:07,737 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-12-06 19:17:08,086 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-12-06 19:17:08,087 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-12-06 19:17:08,124 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:17:08,138 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:17:08,138 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:17:08,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:08 BoogieIcfgContainer [2021-12-06 19:17:08,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:17:08,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:17:08,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:17:08,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:17:08,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:17:06" (1/3) ... [2021-12-06 19:17:08,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76981d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:17:08, skipping insertion in model container [2021-12-06 19:17:08,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:07" (2/3) ... [2021-12-06 19:17:08,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76981d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:17:08, skipping insertion in model container [2021-12-06 19:17:08,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:08" (3/3) ... [2021-12-06 19:17:08,149 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-12-06 19:17:08,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:17:08,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 19:17:08,191 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:17:08,198 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:17:08,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 19:17:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-06 19:17:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 19:17:08,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:08,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:08,233 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:08,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2021-12-06 19:17:08,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:08,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485837232] [2021-12-06 19:17:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:08,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:08,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:08,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485837232] [2021-12-06 19:17:08,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485837232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:08,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:08,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:08,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086263354] [2021-12-06 19:17:08,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:08,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:08,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:08,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:08,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,404 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:08,534 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2021-12-06 19:17:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 19:17:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:08,554 INFO L225 Difference]: With dead ends: 623 [2021-12-06 19:17:08,554 INFO L226 Difference]: Without dead ends: 619 [2021-12-06 19:17:08,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,559 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:08,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-12-06 19:17:08,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2021-12-06 19:17:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2021-12-06 19:17:08,647 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2021-12-06 19:17:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:08,647 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2021-12-06 19:17:08,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2021-12-06 19:17:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:17:08,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:08,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:08,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:17:08,648 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:08,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:08,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2021-12-06 19:17:08,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:08,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941943430] [2021-12-06 19:17:08,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:08,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:08,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:08,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941943430] [2021-12-06 19:17:08,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941943430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:08,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:08,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:08,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100188136] [2021-12-06 19:17:08,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:08,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:08,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:08,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,690 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:08,742 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2021-12-06 19:17:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 19:17:08,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:08,747 INFO L225 Difference]: With dead ends: 606 [2021-12-06 19:17:08,747 INFO L226 Difference]: Without dead ends: 606 [2021-12-06 19:17:08,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,749 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:08,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-06 19:17:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2021-12-06 19:17:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2021-12-06 19:17:08,779 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2021-12-06 19:17:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:08,779 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2021-12-06 19:17:08,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2021-12-06 19:17:08,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:17:08,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:08,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:08,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:17:08,781 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2021-12-06 19:17:08,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:08,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976121796] [2021-12-06 19:17:08,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:08,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:08,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:08,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976121796] [2021-12-06 19:17:08,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976121796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:08,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:08,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:17:08,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797706330] [2021-12-06 19:17:08,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:08,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:08,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:08,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,815 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:08,888 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2021-12-06 19:17:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:08,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 19:17:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:08,893 INFO L225 Difference]: With dead ends: 602 [2021-12-06 19:17:08,893 INFO L226 Difference]: Without dead ends: 599 [2021-12-06 19:17:08,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,894 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:08,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-06 19:17:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-06 19:17:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2021-12-06 19:17:08,915 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2021-12-06 19:17:08,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:08,916 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2021-12-06 19:17:08,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,916 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2021-12-06 19:17:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 19:17:08,916 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:08,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:08,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:17:08,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:08,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2021-12-06 19:17:08,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:08,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94631927] [2021-12-06 19:17:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:08,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:08,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:08,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94631927] [2021-12-06 19:17:08,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94631927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:08,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:08,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:08,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572774701] [2021-12-06 19:17:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:08,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:08,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,945 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:08,990 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2021-12-06 19:17:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 19:17:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:08,995 INFO L225 Difference]: With dead ends: 602 [2021-12-06 19:17:08,995 INFO L226 Difference]: Without dead ends: 599 [2021-12-06 19:17:08,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:08,997 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:08,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-06 19:17:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-06 19:17:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2021-12-06 19:17:09,022 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2021-12-06 19:17:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,022 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2021-12-06 19:17:09,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2021-12-06 19:17:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 19:17:09,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:17:09,023 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2021-12-06 19:17:09,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941290347] [2021-12-06 19:17:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941290347] [2021-12-06 19:17:09,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941290347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:09,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:09,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917052466] [2021-12-06 19:17:09,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:09,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:09,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:09,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:09,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,059 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:09,167 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2021-12-06 19:17:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:09,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 19:17:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:09,173 INFO L225 Difference]: With dead ends: 851 [2021-12-06 19:17:09,173 INFO L226 Difference]: Without dead ends: 850 [2021-12-06 19:17:09,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,174 INFO L933 BasicCegarLoop]: 814 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:09,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 1039 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2021-12-06 19:17:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2021-12-06 19:17:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2021-12-06 19:17:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2021-12-06 19:17:09,196 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2021-12-06 19:17:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,197 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2021-12-06 19:17:09,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2021-12-06 19:17:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:17:09,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:17:09,199 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2021-12-06 19:17:09,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168256601] [2021-12-06 19:17:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168256601] [2021-12-06 19:17:09,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168256601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:09,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:09,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146712545] [2021-12-06 19:17:09,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:09,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:09,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,242 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:09,263 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2021-12-06 19:17:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 19:17:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:09,267 INFO L225 Difference]: With dead ends: 875 [2021-12-06 19:17:09,268 INFO L226 Difference]: Without dead ends: 875 [2021-12-06 19:17:09,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,269 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:09,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-12-06 19:17:09,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2021-12-06 19:17:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2021-12-06 19:17:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2021-12-06 19:17:09,291 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2021-12-06 19:17:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,291 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2021-12-06 19:17:09,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2021-12-06 19:17:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-06 19:17:09,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:17:09,293 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2021-12-06 19:17:09,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990799448] [2021-12-06 19:17:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990799448] [2021-12-06 19:17:09,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990799448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:09,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:09,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094705287] [2021-12-06 19:17:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:09,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:09,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,324 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:09,415 INFO L93 Difference]: Finished difference Result 1342 states and 2023 transitions. [2021-12-06 19:17:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:09,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-06 19:17:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:09,425 INFO L225 Difference]: With dead ends: 1342 [2021-12-06 19:17:09,425 INFO L226 Difference]: Without dead ends: 1342 [2021-12-06 19:17:09,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,426 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 339 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:09,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 1625 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-12-06 19:17:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1035. [2021-12-06 19:17:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 855 states have (on average 1.4385964912280702) internal successors, (1230), 857 states have internal predecessors, (1230), 123 states have call successors, (123), 47 states have call predecessors, (123), 56 states have return successors, (205), 130 states have call predecessors, (205), 115 states have call successors, (205) [2021-12-06 19:17:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1558 transitions. [2021-12-06 19:17:09,477 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1558 transitions. Word has length 21 [2021-12-06 19:17:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,477 INFO L470 AbstractCegarLoop]: Abstraction has 1035 states and 1558 transitions. [2021-12-06 19:17:09,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1558 transitions. [2021-12-06 19:17:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 19:17:09,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:17:09,480 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash -574680278, now seen corresponding path program 1 times [2021-12-06 19:17:09,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689353896] [2021-12-06 19:17:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689353896] [2021-12-06 19:17:09,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689353896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:09,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:09,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696941256] [2021-12-06 19:17:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:09,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:09,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:09,556 INFO L87 Difference]: Start difference. First operand 1035 states and 1558 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:09,817 INFO L93 Difference]: Finished difference Result 1076 states and 1603 transitions. [2021-12-06 19:17:09,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:09,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-06 19:17:09,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:09,825 INFO L225 Difference]: With dead ends: 1076 [2021-12-06 19:17:09,825 INFO L226 Difference]: Without dead ends: 1076 [2021-12-06 19:17:09,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:09,826 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 1035 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:09,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 870 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2021-12-06 19:17:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1017. [2021-12-06 19:17:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 840 states have (on average 1.4321428571428572) internal successors, (1203), 842 states have internal predecessors, (1203), 120 states have call successors, (120), 44 states have call predecessors, (120), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2021-12-06 19:17:09,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1522 transitions. [2021-12-06 19:17:09,866 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1522 transitions. Word has length 22 [2021-12-06 19:17:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,866 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1522 transitions. [2021-12-06 19:17:09,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1522 transitions. [2021-12-06 19:17:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 19:17:09,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:17:09,868 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2021-12-06 19:17:09,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411182487] [2021-12-06 19:17:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411182487] [2021-12-06 19:17:09,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411182487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:09,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:09,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195498037] [2021-12-06 19:17:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:09,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:09,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,897 INFO L87 Difference]: Start difference. First operand 1017 states and 1522 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:09,934 INFO L93 Difference]: Finished difference Result 1016 states and 1519 transitions. [2021-12-06 19:17:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:09,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-06 19:17:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:09,939 INFO L225 Difference]: With dead ends: 1016 [2021-12-06 19:17:09,939 INFO L226 Difference]: Without dead ends: 1016 [2021-12-06 19:17:09,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:09,940 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:09,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2021-12-06 19:17:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2021-12-06 19:17:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 840 states have (on average 1.4297619047619048) internal successors, (1201), 841 states have internal predecessors, (1201), 119 states have call successors, (119), 44 states have call predecessors, (119), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2021-12-06 19:17:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1519 transitions. [2021-12-06 19:17:09,967 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1519 transitions. Word has length 23 [2021-12-06 19:17:09,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:09,967 INFO L470 AbstractCegarLoop]: Abstraction has 1016 states and 1519 transitions. [2021-12-06 19:17:09,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1519 transitions. [2021-12-06 19:17:09,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:17:09,969 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:09,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:09,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:17:09,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:09,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:09,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2021-12-06 19:17:09,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:09,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557844722] [2021-12-06 19:17:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:09,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:17:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:09,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:09,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557844722] [2021-12-06 19:17:09,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557844722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:09,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:10,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:10,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666350481] [2021-12-06 19:17:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:10,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:10,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:10,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:10,001 INFO L87 Difference]: Start difference. First operand 1016 states and 1519 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:10,166 INFO L93 Difference]: Finished difference Result 1313 states and 1942 transitions. [2021-12-06 19:17:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:17:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-12-06 19:17:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:10,173 INFO L225 Difference]: With dead ends: 1313 [2021-12-06 19:17:10,173 INFO L226 Difference]: Without dead ends: 1313 [2021-12-06 19:17:10,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:10,174 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 771 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:10,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [794 Valid, 1397 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-12-06 19:17:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1073. [2021-12-06 19:17:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 894 states have internal predecessors, (1256), 116 states have call successors, (116), 49 states have call predecessors, (116), 68 states have return successors, (178), 129 states have call predecessors, (178), 109 states have call successors, (178) [2021-12-06 19:17:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1550 transitions. [2021-12-06 19:17:10,203 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1550 transitions. Word has length 36 [2021-12-06 19:17:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:10,203 INFO L470 AbstractCegarLoop]: Abstraction has 1073 states and 1550 transitions. [2021-12-06 19:17:10,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1550 transitions. [2021-12-06 19:17:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:10,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:10,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:10,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:17:10,206 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2021-12-06 19:17:10,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:10,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901254258] [2021-12-06 19:17:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:10,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:17:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:10,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:10,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901254258] [2021-12-06 19:17:10,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901254258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:10,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:10,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:10,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930145209] [2021-12-06 19:17:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:10,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:10,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:10,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:10,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:10,243 INFO L87 Difference]: Start difference. First operand 1073 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:10,401 INFO L93 Difference]: Finished difference Result 844 states and 1225 transitions. [2021-12-06 19:17:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:17:10,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-06 19:17:10,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:10,405 INFO L225 Difference]: With dead ends: 844 [2021-12-06 19:17:10,405 INFO L226 Difference]: Without dead ends: 844 [2021-12-06 19:17:10,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:10,406 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 248 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:10,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1771 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-12-06 19:17:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 805. [2021-12-06 19:17:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.4159159159159158) internal successors, (943), 674 states have internal predecessors, (943), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2021-12-06 19:17:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1158 transitions. [2021-12-06 19:17:10,424 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1158 transitions. Word has length 35 [2021-12-06 19:17:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:10,425 INFO L470 AbstractCegarLoop]: Abstraction has 805 states and 1158 transitions. [2021-12-06 19:17:10,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1158 transitions. [2021-12-06 19:17:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:17:10,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:10,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:10,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 19:17:10,427 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:10,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2021-12-06 19:17:10,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:10,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525213751] [2021-12-06 19:17:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:10,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:10,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:10,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525213751] [2021-12-06 19:17:10,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525213751] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:10,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:10,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:10,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707992475] [2021-12-06 19:17:10,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:10,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:10,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:10,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:10,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:10,460 INFO L87 Difference]: Start difference. First operand 805 states and 1158 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:10,627 INFO L93 Difference]: Finished difference Result 823 states and 1179 transitions. [2021-12-06 19:17:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-06 19:17:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:10,631 INFO L225 Difference]: With dead ends: 823 [2021-12-06 19:17:10,631 INFO L226 Difference]: Without dead ends: 823 [2021-12-06 19:17:10,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:10,632 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 695 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:10,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 1107 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:10,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-12-06 19:17:10,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 805. [2021-12-06 19:17:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.412912912912913) internal successors, (941), 674 states have internal predecessors, (941), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2021-12-06 19:17:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1156 transitions. [2021-12-06 19:17:10,650 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1156 transitions. Word has length 32 [2021-12-06 19:17:10,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:10,650 INFO L470 AbstractCegarLoop]: Abstraction has 805 states and 1156 transitions. [2021-12-06 19:17:10,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:10,650 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1156 transitions. [2021-12-06 19:17:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:17:10,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:10,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:10,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 19:17:10,652 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1889417613, now seen corresponding path program 1 times [2021-12-06 19:17:10,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:10,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681457237] [2021-12-06 19:17:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:10,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:10,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:10,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681457237] [2021-12-06 19:17:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681457237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:10,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:10,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:10,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701387242] [2021-12-06 19:17:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:10,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:10,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:10,699 INFO L87 Difference]: Start difference. First operand 805 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,046 INFO L93 Difference]: Finished difference Result 714 states and 1034 transitions. [2021-12-06 19:17:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:17:11,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-12-06 19:17:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,051 INFO L225 Difference]: With dead ends: 714 [2021-12-06 19:17:11,051 INFO L226 Difference]: Without dead ends: 714 [2021-12-06 19:17:11,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:11,052 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 846 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 1651 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-12-06 19:17:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 673. [2021-12-06 19:17:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 555 states have (on average 1.4108108108108108) internal successors, (783), 562 states have internal predecessors, (783), 86 states have call successors, (86), 26 states have call predecessors, (86), 31 states have return successors, (96), 84 states have call predecessors, (96), 79 states have call successors, (96) [2021-12-06 19:17:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 965 transitions. [2021-12-06 19:17:11,070 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 965 transitions. Word has length 36 [2021-12-06 19:17:11,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,071 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 965 transitions. [2021-12-06 19:17:11,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 965 transitions. [2021-12-06 19:17:11,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 19:17:11,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 19:17:11,073 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2021-12-06 19:17:11,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104309876] [2021-12-06 19:17:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:11,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:11,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104309876] [2021-12-06 19:17:11,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104309876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:11,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:11,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:11,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131598122] [2021-12-06 19:17:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:11,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:11,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:11,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:11,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:11,101 INFO L87 Difference]: Start difference. First operand 673 states and 965 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,141 INFO L93 Difference]: Finished difference Result 825 states and 1174 transitions. [2021-12-06 19:17:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 19:17:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,145 INFO L225 Difference]: With dead ends: 825 [2021-12-06 19:17:11,145 INFO L226 Difference]: Without dead ends: 825 [2021-12-06 19:17:11,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:11,146 INFO L933 BasicCegarLoop]: 757 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1373 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2021-12-06 19:17:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 724. [2021-12-06 19:17:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 602 states have (on average 1.3853820598006645) internal successors, (834), 602 states have internal predecessors, (834), 86 states have call successors, (86), 26 states have call predecessors, (86), 35 states have return successors, (107), 95 states have call predecessors, (107), 79 states have call successors, (107) [2021-12-06 19:17:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1027 transitions. [2021-12-06 19:17:11,162 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1027 transitions. Word has length 34 [2021-12-06 19:17:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,162 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 1027 transitions. [2021-12-06 19:17:11,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1027 transitions. [2021-12-06 19:17:11,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 19:17:11,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 19:17:11,166 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,166 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2021-12-06 19:17:11,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791662250] [2021-12-06 19:17:11,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:11,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791662250] [2021-12-06 19:17:11,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791662250] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:11,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:11,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:11,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671060660] [2021-12-06 19:17:11,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:11,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:11,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:11,211 INFO L87 Difference]: Start difference. First operand 724 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,380 INFO L93 Difference]: Finished difference Result 705 states and 997 transitions. [2021-12-06 19:17:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:11,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 19:17:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,384 INFO L225 Difference]: With dead ends: 705 [2021-12-06 19:17:11,384 INFO L226 Difference]: Without dead ends: 705 [2021-12-06 19:17:11,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:11,385 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-12-06 19:17:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2021-12-06 19:17:11,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2021-12-06 19:17:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2021-12-06 19:17:11,398 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 34 [2021-12-06 19:17:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,398 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2021-12-06 19:17:11,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2021-12-06 19:17:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:11,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 19:17:11,400 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2021-12-06 19:17:11,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351018303] [2021-12-06 19:17:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:11,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:11,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351018303] [2021-12-06 19:17:11,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351018303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:11,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:11,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:11,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036536770] [2021-12-06 19:17:11,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:11,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:11,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:11,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:11,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:11,439 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,634 INFO L93 Difference]: Finished difference Result 802 states and 1139 transitions. [2021-12-06 19:17:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:11,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 19:17:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,639 INFO L225 Difference]: With dead ends: 802 [2021-12-06 19:17:11,639 INFO L226 Difference]: Without dead ends: 802 [2021-12-06 19:17:11,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:11,640 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 749 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 1197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-12-06 19:17:11,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 708. [2021-12-06 19:17:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 588 states have (on average 1.3894557823129252) internal successors, (817), 595 states have internal predecessors, (817), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2021-12-06 19:17:11,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1001 transitions. [2021-12-06 19:17:11,660 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1001 transitions. Word has length 35 [2021-12-06 19:17:11,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,660 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 1001 transitions. [2021-12-06 19:17:11,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1001 transitions. [2021-12-06 19:17:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:11,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 19:17:11,663 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2021-12-06 19:17:11,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498918901] [2021-12-06 19:17:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:11,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498918901] [2021-12-06 19:17:11,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498918901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:11,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:11,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:17:11,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103103090] [2021-12-06 19:17:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:11,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:17:11,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:17:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:11,706 INFO L87 Difference]: Start difference. First operand 708 states and 1001 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,756 INFO L93 Difference]: Finished difference Result 718 states and 1011 transitions. [2021-12-06 19:17:11,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:17:11,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 19:17:11,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,760 INFO L225 Difference]: With dead ends: 718 [2021-12-06 19:17:11,760 INFO L226 Difference]: Without dead ends: 691 [2021-12-06 19:17:11,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:11,761 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 38 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 3207 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-12-06 19:17:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2021-12-06 19:17:11,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 571 states have (on average 1.3957968476357268) internal successors, (797), 578 states have internal predecessors, (797), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2021-12-06 19:17:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 981 transitions. [2021-12-06 19:17:11,773 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 981 transitions. Word has length 35 [2021-12-06 19:17:11,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,773 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 981 transitions. [2021-12-06 19:17:11,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:11,773 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 981 transitions. [2021-12-06 19:17:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 19:17:11,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 19:17:11,775 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2021-12-06 19:17:11,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881957959] [2021-12-06 19:17:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:11,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:11,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881957959] [2021-12-06 19:17:11,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881957959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:11,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:11,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:11,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966021034] [2021-12-06 19:17:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:11,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:11,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:11,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:11,804 INFO L87 Difference]: Start difference. First operand 691 states and 981 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:11,953 INFO L93 Difference]: Finished difference Result 727 states and 1043 transitions. [2021-12-06 19:17:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:17:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-06 19:17:11,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:11,958 INFO L225 Difference]: With dead ends: 727 [2021-12-06 19:17:11,958 INFO L226 Difference]: Without dead ends: 725 [2021-12-06 19:17:11,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:11,959 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 153 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:11,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 1553 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:11,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2021-12-06 19:17:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2021-12-06 19:17:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3914529914529914) internal successors, (814), 592 states have internal predecessors, (814), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2021-12-06 19:17:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 998 transitions. [2021-12-06 19:17:11,978 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 998 transitions. Word has length 37 [2021-12-06 19:17:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:11,978 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 998 transitions. [2021-12-06 19:17:11,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 998 transitions. [2021-12-06 19:17:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 19:17:11,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:11,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:11,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 19:17:11,981 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:11,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2122568447, now seen corresponding path program 1 times [2021-12-06 19:17:11,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590727788] [2021-12-06 19:17:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:11,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:12,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:12,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590727788] [2021-12-06 19:17:12,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590727788] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:12,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:12,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:17:12,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518620591] [2021-12-06 19:17:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:12,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:17:12,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:17:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:12,046 INFO L87 Difference]: Start difference. First operand 705 states and 998 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:12,266 INFO L93 Difference]: Finished difference Result 725 states and 1040 transitions. [2021-12-06 19:17:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:12,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-06 19:17:12,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:12,269 INFO L225 Difference]: With dead ends: 725 [2021-12-06 19:17:12,269 INFO L226 Difference]: Without dead ends: 725 [2021-12-06 19:17:12,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:12,270 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 787 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:12,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 1463 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:12,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2021-12-06 19:17:12,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2021-12-06 19:17:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2021-12-06 19:17:12,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2021-12-06 19:17:12,283 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 39 [2021-12-06 19:17:12,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:12,283 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2021-12-06 19:17:12,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:12,283 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2021-12-06 19:17:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 19:17:12,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:12,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:12,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 19:17:12,285 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:12,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:12,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1062055151, now seen corresponding path program 1 times [2021-12-06 19:17:12,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:12,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46146136] [2021-12-06 19:17:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:12,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:12,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:12,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46146136] [2021-12-06 19:17:12,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46146136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:12,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:12,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:12,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663773827] [2021-12-06 19:17:12,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:12,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:12,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:12,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:12,328 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:12,562 INFO L93 Difference]: Finished difference Result 741 states and 1059 transitions. [2021-12-06 19:17:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:12,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 19:17:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:12,566 INFO L225 Difference]: With dead ends: 741 [2021-12-06 19:17:12,566 INFO L226 Difference]: Without dead ends: 712 [2021-12-06 19:17:12,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:12,567 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 158 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:12,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 3987 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-12-06 19:17:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 696. [2021-12-06 19:17:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 578 states have (on average 1.3719723183391004) internal successors, (793), 585 states have internal predecessors, (793), 84 states have call successors, (84), 26 states have call predecessors, (84), 33 states have return successors, (96), 84 states have call predecessors, (96), 77 states have call successors, (96) [2021-12-06 19:17:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 973 transitions. [2021-12-06 19:17:12,589 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 973 transitions. Word has length 40 [2021-12-06 19:17:12,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:12,589 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 973 transitions. [2021-12-06 19:17:12,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 973 transitions. [2021-12-06 19:17:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 19:17:12,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:12,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:12,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 19:17:12,591 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:12,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:12,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2021-12-06 19:17:12,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:12,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933815618] [2021-12-06 19:17:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:12,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 19:17:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:12,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:12,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933815618] [2021-12-06 19:17:12,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933815618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:12,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:12,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:12,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575417299] [2021-12-06 19:17:12,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:12,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:12,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:12,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:12,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:12,622 INFO L87 Difference]: Start difference. First operand 696 states and 973 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:12,877 INFO L93 Difference]: Finished difference Result 688 states and 980 transitions. [2021-12-06 19:17:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2021-12-06 19:17:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:12,881 INFO L225 Difference]: With dead ends: 688 [2021-12-06 19:17:12,881 INFO L226 Difference]: Without dead ends: 688 [2021-12-06 19:17:12,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:12,882 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 252 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:12,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1847 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-12-06 19:17:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 672. [2021-12-06 19:17:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 557 states have (on average 1.3698384201077198) internal successors, (763), 563 states have internal predecessors, (763), 83 states have call successors, (83), 26 states have call predecessors, (83), 31 states have return successors, (94), 82 states have call predecessors, (94), 77 states have call successors, (94) [2021-12-06 19:17:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 940 transitions. [2021-12-06 19:17:12,895 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 940 transitions. Word has length 43 [2021-12-06 19:17:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:12,895 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 940 transitions. [2021-12-06 19:17:12,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 940 transitions. [2021-12-06 19:17:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:12,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:12,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:12,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 19:17:12,897 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2021-12-06 19:17:12,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:12,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286757122] [2021-12-06 19:17:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:12,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:17:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:12,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:12,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286757122] [2021-12-06 19:17:12,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286757122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:12,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:12,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:12,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320944470] [2021-12-06 19:17:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:12,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:12,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:12,967 INFO L87 Difference]: Start difference. First operand 672 states and 940 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:13,350 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2021-12-06 19:17:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:13,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2021-12-06 19:17:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:13,355 INFO L225 Difference]: With dead ends: 699 [2021-12-06 19:17:13,355 INFO L226 Difference]: Without dead ends: 686 [2021-12-06 19:17:13,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:13,356 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 98 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:13,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 4461 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-12-06 19:17:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 670. [2021-12-06 19:17:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 556 states have (on average 1.368705035971223) internal successors, (761), 562 states have internal predecessors, (761), 82 states have call successors, (82), 26 states have call predecessors, (82), 31 states have return successors, (93), 81 states have call predecessors, (93), 76 states have call successors, (93) [2021-12-06 19:17:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 936 transitions. [2021-12-06 19:17:13,374 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 936 transitions. Word has length 44 [2021-12-06 19:17:13,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:13,375 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 936 transitions. [2021-12-06 19:17:13,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 936 transitions. [2021-12-06 19:17:13,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 19:17:13,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:13,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:13,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 19:17:13,378 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:13,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:13,378 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2021-12-06 19:17:13,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:13,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703417958] [2021-12-06 19:17:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:13,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:13,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:13,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703417958] [2021-12-06 19:17:13,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703417958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:13,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:13,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:13,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222468899] [2021-12-06 19:17:13,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:13,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:13,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:13,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:13,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:13,449 INFO L87 Difference]: Start difference. First operand 670 states and 936 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:13,843 INFO L93 Difference]: Finished difference Result 696 states and 986 transitions. [2021-12-06 19:17:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:13,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2021-12-06 19:17:13,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:13,846 INFO L225 Difference]: With dead ends: 696 [2021-12-06 19:17:13,846 INFO L226 Difference]: Without dead ends: 683 [2021-12-06 19:17:13,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:13,847 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 98 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:13,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 4410 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:13,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-12-06 19:17:13,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 667. [2021-12-06 19:17:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 554 states have (on average 1.3682310469314078) internal successors, (758), 560 states have internal predecessors, (758), 81 states have call successors, (81), 26 states have call predecessors, (81), 31 states have return successors, (92), 80 states have call predecessors, (92), 75 states have call successors, (92) [2021-12-06 19:17:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 931 transitions. [2021-12-06 19:17:13,858 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 931 transitions. Word has length 43 [2021-12-06 19:17:13,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:13,859 INFO L470 AbstractCegarLoop]: Abstraction has 667 states and 931 transitions. [2021-12-06 19:17:13,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 931 transitions. [2021-12-06 19:17:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:13,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:13,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:13,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 19:17:13,861 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:13,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2021-12-06 19:17:13,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:13,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328150901] [2021-12-06 19:17:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:13,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:13,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:13,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328150901] [2021-12-06 19:17:13,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328150901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:13,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:13,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:17:13,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044641948] [2021-12-06 19:17:13,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:13,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:17:13,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:13,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:17:13,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:13,948 INFO L87 Difference]: Start difference. First operand 667 states and 931 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:14,371 INFO L93 Difference]: Finished difference Result 716 states and 1006 transitions. [2021-12-06 19:17:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:17:14,371 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-06 19:17:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:14,375 INFO L225 Difference]: With dead ends: 716 [2021-12-06 19:17:14,375 INFO L226 Difference]: Without dead ends: 699 [2021-12-06 19:17:14,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:17:14,376 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 244 mSDsluCounter, 4914 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 5507 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:14,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 5507 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-12-06 19:17:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 665. [2021-12-06 19:17:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 553 states have (on average 1.3670886075949367) internal successors, (756), 559 states have internal predecessors, (756), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2021-12-06 19:17:14,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 927 transitions. [2021-12-06 19:17:14,393 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 927 transitions. Word has length 47 [2021-12-06 19:17:14,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:14,394 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 927 transitions. [2021-12-06 19:17:14,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:14,394 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 927 transitions. [2021-12-06 19:17:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:14,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:14,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:14,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 19:17:14,397 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:14,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2021-12-06 19:17:14,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:14,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151015513] [2021-12-06 19:17:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:14,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:14,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:14,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151015513] [2021-12-06 19:17:14,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151015513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:14,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:14,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:17:14,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160117953] [2021-12-06 19:17:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:14,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:17:14,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:17:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:14,501 INFO L87 Difference]: Start difference. First operand 665 states and 927 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:14,936 INFO L93 Difference]: Finished difference Result 714 states and 1002 transitions. [2021-12-06 19:17:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:17:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-12-06 19:17:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:14,940 INFO L225 Difference]: With dead ends: 714 [2021-12-06 19:17:14,940 INFO L226 Difference]: Without dead ends: 696 [2021-12-06 19:17:14,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:17:14,941 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 171 mSDsluCounter, 4741 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:14,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 5318 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:14,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-12-06 19:17:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 664. [2021-12-06 19:17:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 552 states have (on average 1.3496376811594204) internal successors, (745), 558 states have internal predecessors, (745), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2021-12-06 19:17:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 916 transitions. [2021-12-06 19:17:14,957 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 916 transitions. Word has length 44 [2021-12-06 19:17:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:14,958 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 916 transitions. [2021-12-06 19:17:14,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 916 transitions. [2021-12-06 19:17:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:14,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:14,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:14,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 19:17:14,961 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:14,961 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2021-12-06 19:17:14,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:14,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112006542] [2021-12-06 19:17:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:14,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:14,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:15,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:15,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112006542] [2021-12-06 19:17:15,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112006542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:15,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:15,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:15,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421184617] [2021-12-06 19:17:15,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:15,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:15,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:15,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:15,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:15,004 INFO L87 Difference]: Start difference. First operand 664 states and 916 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:15,222 INFO L93 Difference]: Finished difference Result 695 states and 971 transitions. [2021-12-06 19:17:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 19:17:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:15,226 INFO L225 Difference]: With dead ends: 695 [2021-12-06 19:17:15,227 INFO L226 Difference]: Without dead ends: 668 [2021-12-06 19:17:15,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:15,227 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 158 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:15,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 3691 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-12-06 19:17:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 652. [2021-12-06 19:17:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 549 states have internal predecessors, (730), 77 states have call successors, (77), 26 states have call predecessors, (77), 31 states have return successors, (88), 76 states have call predecessors, (88), 71 states have call successors, (88) [2021-12-06 19:17:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 895 transitions. [2021-12-06 19:17:15,242 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 895 transitions. Word has length 44 [2021-12-06 19:17:15,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:15,242 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 895 transitions. [2021-12-06 19:17:15,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 895 transitions. [2021-12-06 19:17:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:15,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:15,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:15,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 19:17:15,245 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:15,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2021-12-06 19:17:15,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:15,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91285090] [2021-12-06 19:17:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:15,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:15,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:15,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91285090] [2021-12-06 19:17:15,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91285090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:15,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:15,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:17:15,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485092473] [2021-12-06 19:17:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:15,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:17:15,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:17:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:15,286 INFO L87 Difference]: Start difference. First operand 652 states and 895 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:15,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:15,517 INFO L93 Difference]: Finished difference Result 703 states and 999 transitions. [2021-12-06 19:17:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 19:17:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:15,521 INFO L225 Difference]: With dead ends: 703 [2021-12-06 19:17:15,521 INFO L226 Difference]: Without dead ends: 703 [2021-12-06 19:17:15,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:15,522 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 225 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:15,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1860 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2021-12-06 19:17:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 659. [2021-12-06 19:17:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 548 states have (on average 1.344890510948905) internal successors, (737), 555 states have internal predecessors, (737), 78 states have call successors, (78), 26 states have call predecessors, (78), 32 states have return successors, (95), 77 states have call predecessors, (95), 72 states have call successors, (95) [2021-12-06 19:17:15,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 910 transitions. [2021-12-06 19:17:15,534 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 910 transitions. Word has length 45 [2021-12-06 19:17:15,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:15,534 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 910 transitions. [2021-12-06 19:17:15,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:15,534 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 910 transitions. [2021-12-06 19:17:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:15,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:15,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:15,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 19:17:15,536 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:15,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2021-12-06 19:17:15,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:15,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729814573] [2021-12-06 19:17:15,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:15,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:15,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:15,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729814573] [2021-12-06 19:17:15,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729814573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:15,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:15,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:17:15,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938486303] [2021-12-06 19:17:15,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:15,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:17:15,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:17:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:15,585 INFO L87 Difference]: Start difference. First operand 659 states and 910 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:15,837 INFO L93 Difference]: Finished difference Result 694 states and 975 transitions. [2021-12-06 19:17:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:17:15,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 19:17:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:15,841 INFO L225 Difference]: With dead ends: 694 [2021-12-06 19:17:15,842 INFO L226 Difference]: Without dead ends: 677 [2021-12-06 19:17:15,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:15,842 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 161 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:15,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 3860 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-12-06 19:17:15,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 657. [2021-12-06 19:17:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 547 states have (on average 1.3436928702010968) internal successors, (735), 554 states have internal predecessors, (735), 77 states have call successors, (77), 26 states have call predecessors, (77), 32 states have return successors, (94), 76 states have call predecessors, (94), 71 states have call successors, (94) [2021-12-06 19:17:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2021-12-06 19:17:15,858 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 45 [2021-12-06 19:17:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:15,858 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2021-12-06 19:17:15,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2021-12-06 19:17:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:15,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:15,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:15,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 19:17:15,860 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:15,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:15,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2021-12-06 19:17:15,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:15,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955384615] [2021-12-06 19:17:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:15,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:15,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:15,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955384615] [2021-12-06 19:17:15,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955384615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:15,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:15,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:15,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86513410] [2021-12-06 19:17:15,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:15,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:15,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:15,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:15,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:15,901 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:16,090 INFO L93 Difference]: Finished difference Result 701 states and 985 transitions. [2021-12-06 19:17:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:16,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 19:17:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:16,093 INFO L225 Difference]: With dead ends: 701 [2021-12-06 19:17:16,093 INFO L226 Difference]: Without dead ends: 669 [2021-12-06 19:17:16,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:16,094 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 166 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:16,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 3542 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-12-06 19:17:16,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 649. [2021-12-06 19:17:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 541 states have (on average 1.3364140480591498) internal successors, (723), 548 states have internal predecessors, (723), 75 states have call successors, (75), 26 states have call predecessors, (75), 32 states have return successors, (92), 74 states have call predecessors, (92), 69 states have call successors, (92) [2021-12-06 19:17:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 890 transitions. [2021-12-06 19:17:16,106 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 890 transitions. Word has length 45 [2021-12-06 19:17:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:16,106 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 890 transitions. [2021-12-06 19:17:16,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 890 transitions. [2021-12-06 19:17:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:17:16,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:16,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:16,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 19:17:16,108 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2021-12-06 19:17:16,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:16,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049042964] [2021-12-06 19:17:16,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:16,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:16,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:16,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049042964] [2021-12-06 19:17:16,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049042964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:16,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:16,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:16,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065014818] [2021-12-06 19:17:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:16,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:16,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:16,218 INFO L87 Difference]: Start difference. First operand 649 states and 890 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:16,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:16,711 INFO L93 Difference]: Finished difference Result 681 states and 952 transitions. [2021-12-06 19:17:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:17:16,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-06 19:17:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:16,714 INFO L225 Difference]: With dead ends: 681 [2021-12-06 19:17:16,714 INFO L226 Difference]: Without dead ends: 666 [2021-12-06 19:17:16,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:16,715 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 110 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:16,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 4317 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-12-06 19:17:16,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 646. [2021-12-06 19:17:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 539 states have (on average 1.3358070500927643) internal successors, (720), 546 states have internal predecessors, (720), 74 states have call successors, (74), 26 states have call predecessors, (74), 32 states have return successors, (91), 73 states have call predecessors, (91), 68 states have call successors, (91) [2021-12-06 19:17:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 885 transitions. [2021-12-06 19:17:16,725 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 885 transitions. Word has length 46 [2021-12-06 19:17:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:16,725 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 885 transitions. [2021-12-06 19:17:16,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 885 transitions. [2021-12-06 19:17:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:17:16,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:16,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:16,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 19:17:16,727 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1506824031, now seen corresponding path program 1 times [2021-12-06 19:17:16,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848411819] [2021-12-06 19:17:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:16,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:17:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:16,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848411819] [2021-12-06 19:17:16,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848411819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:16,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:16,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:16,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385529807] [2021-12-06 19:17:16,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:16,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:16,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:16,767 INFO L87 Difference]: Start difference. First operand 646 states and 885 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:16,963 INFO L93 Difference]: Finished difference Result 678 states and 966 transitions. [2021-12-06 19:17:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:16,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2021-12-06 19:17:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:16,966 INFO L225 Difference]: With dead ends: 678 [2021-12-06 19:17:16,966 INFO L226 Difference]: Without dead ends: 676 [2021-12-06 19:17:16,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:16,967 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 187 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:16,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 2353 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-12-06 19:17:16,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 650. [2021-12-06 19:17:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 541 states have (on average 1.33456561922366) internal successors, (722), 550 states have internal predecessors, (722), 74 states have call successors, (74), 26 states have call predecessors, (74), 34 states have return successors, (107), 73 states have call predecessors, (107), 68 states have call successors, (107) [2021-12-06 19:17:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 903 transitions. [2021-12-06 19:17:16,979 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 903 transitions. Word has length 46 [2021-12-06 19:17:16,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:16,979 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 903 transitions. [2021-12-06 19:17:16,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:16,979 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 903 transitions. [2021-12-06 19:17:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:16,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:16,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:16,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 19:17:16,981 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:16,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:16,981 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2021-12-06 19:17:16,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:16,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372649763] [2021-12-06 19:17:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:16,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:17,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:17,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372649763] [2021-12-06 19:17:17,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372649763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:17,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:17,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:17,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387213928] [2021-12-06 19:17:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:17,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:17,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:17,101 INFO L87 Difference]: Start difference. First operand 650 states and 903 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:17,635 INFO L93 Difference]: Finished difference Result 682 states and 965 transitions. [2021-12-06 19:17:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2021-12-06 19:17:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:17,638 INFO L225 Difference]: With dead ends: 682 [2021-12-06 19:17:17,638 INFO L226 Difference]: Without dead ends: 661 [2021-12-06 19:17:17,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:17,639 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 123 mSDsluCounter, 4170 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:17,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 4712 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:17:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2021-12-06 19:17:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 641. [2021-12-06 19:17:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 534 states have (on average 1.3352059925093633) internal successors, (713), 543 states have internal predecessors, (713), 72 states have call successors, (72), 26 states have call predecessors, (72), 34 states have return successors, (105), 71 states have call predecessors, (105), 66 states have call successors, (105) [2021-12-06 19:17:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 890 transitions. [2021-12-06 19:17:17,649 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 890 transitions. Word has length 54 [2021-12-06 19:17:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:17,649 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 890 transitions. [2021-12-06 19:17:17,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 890 transitions. [2021-12-06 19:17:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:17:17,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:17,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:17,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 19:17:17,651 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2021-12-06 19:17:17,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:17,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005029728] [2021-12-06 19:17:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:17,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:17:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:17,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:17,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005029728] [2021-12-06 19:17:17,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005029728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:17,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:17,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:17,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279161936] [2021-12-06 19:17:17,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:17,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:17,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:17,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:17,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:17,756 INFO L87 Difference]: Start difference. First operand 641 states and 890 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:18,293 INFO L93 Difference]: Finished difference Result 673 states and 951 transitions. [2021-12-06 19:17:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:18,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2021-12-06 19:17:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:18,296 INFO L225 Difference]: With dead ends: 673 [2021-12-06 19:17:18,296 INFO L226 Difference]: Without dead ends: 658 [2021-12-06 19:17:18,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:18,297 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 123 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:18,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 4607 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:17:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-12-06 19:17:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2021-12-06 19:17:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 532 states have (on average 1.3345864661654134) internal successors, (710), 541 states have internal predecessors, (710), 71 states have call successors, (71), 26 states have call predecessors, (71), 34 states have return successors, (104), 70 states have call predecessors, (104), 65 states have call successors, (104) [2021-12-06 19:17:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 885 transitions. [2021-12-06 19:17:18,308 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 885 transitions. Word has length 48 [2021-12-06 19:17:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:18,308 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 885 transitions. [2021-12-06 19:17:18,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 885 transitions. [2021-12-06 19:17:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:18,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:18,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:18,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 19:17:18,310 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2021-12-06 19:17:18,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:18,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633672687] [2021-12-06 19:17:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:18,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:18,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:18,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633672687] [2021-12-06 19:17:18,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633672687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:18,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:18,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:18,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910304316] [2021-12-06 19:17:18,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:18,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:18,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:18,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:18,417 INFO L87 Difference]: Start difference. First operand 638 states and 885 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:18,941 INFO L93 Difference]: Finished difference Result 670 states and 946 transitions. [2021-12-06 19:17:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:18,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2021-12-06 19:17:18,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:18,944 INFO L225 Difference]: With dead ends: 670 [2021-12-06 19:17:18,944 INFO L226 Difference]: Without dead ends: 655 [2021-12-06 19:17:18,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:18,945 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 123 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:18,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 4547 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:17:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-12-06 19:17:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 635. [2021-12-06 19:17:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 530 states have (on average 1.3339622641509434) internal successors, (707), 539 states have internal predecessors, (707), 70 states have call successors, (70), 26 states have call predecessors, (70), 34 states have return successors, (103), 69 states have call predecessors, (103), 64 states have call successors, (103) [2021-12-06 19:17:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 880 transitions. [2021-12-06 19:17:18,958 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 880 transitions. Word has length 47 [2021-12-06 19:17:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:18,958 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 880 transitions. [2021-12-06 19:17:18,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 880 transitions. [2021-12-06 19:17:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 19:17:18,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:18,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:18,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 19:17:18,960 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash -109408180, now seen corresponding path program 1 times [2021-12-06 19:17:18,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:18,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800688766] [2021-12-06 19:17:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:18,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:17:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 19:17:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:17:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:19,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:19,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800688766] [2021-12-06 19:17:19,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800688766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:19,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:19,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:19,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979669840] [2021-12-06 19:17:19,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:19,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:19,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:19,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:19,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:19,005 INFO L87 Difference]: Start difference. First operand 635 states and 880 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:19,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:19,213 INFO L93 Difference]: Finished difference Result 746 states and 1040 transitions. [2021-12-06 19:17:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:19,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2021-12-06 19:17:19,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:19,216 INFO L225 Difference]: With dead ends: 746 [2021-12-06 19:17:19,216 INFO L226 Difference]: Without dead ends: 746 [2021-12-06 19:17:19,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:19,216 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 315 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:19,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1320 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:19,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-12-06 19:17:19,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 699. [2021-12-06 19:17:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 584 states have (on average 1.332191780821918) internal successors, (778), 593 states have internal predecessors, (778), 73 states have call successors, (73), 30 states have call predecessors, (73), 41 states have return successors, (112), 75 states have call predecessors, (112), 68 states have call successors, (112) [2021-12-06 19:17:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 963 transitions. [2021-12-06 19:17:19,234 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 963 transitions. Word has length 50 [2021-12-06 19:17:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:19,234 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 963 transitions. [2021-12-06 19:17:19,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 963 transitions. [2021-12-06 19:17:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 19:17:19,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:19,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:19,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 19:17:19,236 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2021-12-06 19:17:19,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100168185] [2021-12-06 19:17:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:19,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:19,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100168185] [2021-12-06 19:17:19,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100168185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:19,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:19,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:17:19,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749714642] [2021-12-06 19:17:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:19,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:17:19,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:17:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:19,338 INFO L87 Difference]: Start difference. First operand 699 states and 963 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:19,805 INFO L93 Difference]: Finished difference Result 760 states and 1055 transitions. [2021-12-06 19:17:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2021-12-06 19:17:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:19,808 INFO L225 Difference]: With dead ends: 760 [2021-12-06 19:17:19,808 INFO L226 Difference]: Without dead ends: 743 [2021-12-06 19:17:19,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:17:19,809 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 245 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:19,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 5267 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-12-06 19:17:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 697. [2021-12-06 19:17:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 583 states have (on average 1.3310463121783878) internal successors, (776), 592 states have internal predecessors, (776), 72 states have call successors, (72), 30 states have call predecessors, (72), 41 states have return successors, (111), 74 states have call predecessors, (111), 67 states have call successors, (111) [2021-12-06 19:17:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 959 transitions. [2021-12-06 19:17:19,819 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 959 transitions. Word has length 52 [2021-12-06 19:17:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:19,820 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 959 transitions. [2021-12-06 19:17:19,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 959 transitions. [2021-12-06 19:17:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:17:19,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:19,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:19,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 19:17:19,821 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:19,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2021-12-06 19:17:19,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:19,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589657478] [2021-12-06 19:17:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:19,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:19,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:19,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589657478] [2021-12-06 19:17:19,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589657478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:19,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:19,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:17:19,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214907614] [2021-12-06 19:17:19,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:19,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:17:19,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:17:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:19,907 INFO L87 Difference]: Start difference. First operand 697 states and 959 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:20,325 INFO L93 Difference]: Finished difference Result 742 states and 1034 transitions. [2021-12-06 19:17:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:17:20,326 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2021-12-06 19:17:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:20,328 INFO L225 Difference]: With dead ends: 742 [2021-12-06 19:17:20,328 INFO L226 Difference]: Without dead ends: 725 [2021-12-06 19:17:20,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:17:20,329 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 238 mSDsluCounter, 3629 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:20,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 4122 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2021-12-06 19:17:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 695. [2021-12-06 19:17:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 582 states have (on average 1.3298969072164948) internal successors, (774), 591 states have internal predecessors, (774), 71 states have call successors, (71), 30 states have call predecessors, (71), 41 states have return successors, (110), 73 states have call predecessors, (110), 66 states have call successors, (110) [2021-12-06 19:17:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 955 transitions. [2021-12-06 19:17:20,339 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 955 transitions. Word has length 48 [2021-12-06 19:17:20,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:20,339 INFO L470 AbstractCegarLoop]: Abstraction has 695 states and 955 transitions. [2021-12-06 19:17:20,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:20,339 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 955 transitions. [2021-12-06 19:17:20,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:17:20,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:20,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:20,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 19:17:20,341 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2066330974, now seen corresponding path program 1 times [2021-12-06 19:17:20,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:20,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132808475] [2021-12-06 19:17:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:20,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 19:17:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:17:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:20,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:20,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132808475] [2021-12-06 19:17:20,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132808475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:20,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:20,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:20,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778443604] [2021-12-06 19:17:20,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:20,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:20,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:20,368 INFO L87 Difference]: Start difference. First operand 695 states and 955 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:20,517 INFO L93 Difference]: Finished difference Result 654 states and 879 transitions. [2021-12-06 19:17:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:17:20,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2021-12-06 19:17:20,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:20,520 INFO L225 Difference]: With dead ends: 654 [2021-12-06 19:17:20,520 INFO L226 Difference]: Without dead ends: 651 [2021-12-06 19:17:20,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:20,521 INFO L933 BasicCegarLoop]: 485 mSDtfsCounter, 174 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:20,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1251 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:20,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-12-06 19:17:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 622. [2021-12-06 19:17:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 525 states have (on average 1.3257142857142856) internal successors, (696), 532 states have internal predecessors, (696), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2021-12-06 19:17:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 832 transitions. [2021-12-06 19:17:20,537 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 832 transitions. Word has length 48 [2021-12-06 19:17:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:20,537 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 832 transitions. [2021-12-06 19:17:20,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 832 transitions. [2021-12-06 19:17:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:17:20,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:20,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:20,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 19:17:20,539 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:20,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2021-12-06 19:17:20,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:20,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425309116] [2021-12-06 19:17:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:20,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:20,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:20,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425309116] [2021-12-06 19:17:20,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425309116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:20,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:20,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:17:20,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413853289] [2021-12-06 19:17:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:20,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:17:20,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:20,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:17:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:20,635 INFO L87 Difference]: Start difference. First operand 622 states and 832 transitions. Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:21,010 INFO L93 Difference]: Finished difference Result 649 states and 866 transitions. [2021-12-06 19:17:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2021-12-06 19:17:21,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:21,013 INFO L225 Difference]: With dead ends: 649 [2021-12-06 19:17:21,014 INFO L226 Difference]: Without dead ends: 632 [2021-12-06 19:17:21,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:17:21,014 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 328 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:21,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 3926 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-12-06 19:17:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 620. [2021-12-06 19:17:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 524 states have (on average 1.3244274809160306) internal successors, (694), 531 states have internal predecessors, (694), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2021-12-06 19:17:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 828 transitions. [2021-12-06 19:17:21,025 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 828 transitions. Word has length 51 [2021-12-06 19:17:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:21,025 INFO L470 AbstractCegarLoop]: Abstraction has 620 states and 828 transitions. [2021-12-06 19:17:21,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 828 transitions. [2021-12-06 19:17:21,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 19:17:21,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:21,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:21,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 19:17:21,026 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:21,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2021-12-06 19:17:21,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:21,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732392312] [2021-12-06 19:17:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:21,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:17:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 19:17:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:21,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:21,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732392312] [2021-12-06 19:17:21,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732392312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:21,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:21,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:21,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535035675] [2021-12-06 19:17:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:21,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:21,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:21,068 INFO L87 Difference]: Start difference. First operand 620 states and 828 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:21,288 INFO L93 Difference]: Finished difference Result 688 states and 913 transitions. [2021-12-06 19:17:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:21,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2021-12-06 19:17:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:21,290 INFO L225 Difference]: With dead ends: 688 [2021-12-06 19:17:21,290 INFO L226 Difference]: Without dead ends: 688 [2021-12-06 19:17:21,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:21,290 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 260 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:21,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2411 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:21,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-12-06 19:17:21,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 626. [2021-12-06 19:17:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3232514177693762) internal successors, (700), 536 states have internal predecessors, (700), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2021-12-06 19:17:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 836 transitions. [2021-12-06 19:17:21,297 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 836 transitions. Word has length 50 [2021-12-06 19:17:21,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:21,298 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 836 transitions. [2021-12-06 19:17:21,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 836 transitions. [2021-12-06 19:17:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:17:21,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:21,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:21,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 19:17:21,299 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:21,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1910633636, now seen corresponding path program 1 times [2021-12-06 19:17:21,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:21,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353487449] [2021-12-06 19:17:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:21,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 19:17:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 19:17:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:17:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:21,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:21,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353487449] [2021-12-06 19:17:21,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353487449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:21,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:21,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:17:21,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996198076] [2021-12-06 19:17:21,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:21,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:17:21,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:17:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:21,357 INFO L87 Difference]: Start difference. First operand 626 states and 836 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 19:17:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:21,551 INFO L93 Difference]: Finished difference Result 638 states and 853 transitions. [2021-12-06 19:17:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:17:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2021-12-06 19:17:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:21,552 INFO L225 Difference]: With dead ends: 638 [2021-12-06 19:17:21,552 INFO L226 Difference]: Without dead ends: 638 [2021-12-06 19:17:21,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:21,553 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 197 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:21,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1466 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-12-06 19:17:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 626. [2021-12-06 19:17:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3194706994328922) internal successors, (698), 536 states have internal predecessors, (698), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2021-12-06 19:17:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 834 transitions. [2021-12-06 19:17:21,560 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 834 transitions. Word has length 53 [2021-12-06 19:17:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:21,560 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 834 transitions. [2021-12-06 19:17:21,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 19:17:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 834 transitions. [2021-12-06 19:17:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:17:21,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:21,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:21,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 19:17:21,561 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2021-12-06 19:17:21,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:21,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978397208] [2021-12-06 19:17:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:21,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 19:17:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:17:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:21,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:21,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978397208] [2021-12-06 19:17:21,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978397208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:21,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:21,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:17:21,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056187490] [2021-12-06 19:17:21,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:21,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:17:21,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:21,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:17:21,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:21,611 INFO L87 Difference]: Start difference. First operand 626 states and 834 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:21,850 INFO L93 Difference]: Finished difference Result 669 states and 890 transitions. [2021-12-06 19:17:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:17:21,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-06 19:17:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:21,851 INFO L225 Difference]: With dead ends: 669 [2021-12-06 19:17:21,851 INFO L226 Difference]: Without dead ends: 618 [2021-12-06 19:17:21,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:21,852 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 185 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:21,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 3147 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2021-12-06 19:17:21,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 599. [2021-12-06 19:17:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 507 states have (on average 1.3057199211045365) internal successors, (662), 514 states have internal predecessors, (662), 57 states have call successors, (57), 27 states have call predecessors, (57), 34 states have return successors, (68), 57 states have call predecessors, (68), 52 states have call successors, (68) [2021-12-06 19:17:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 787 transitions. [2021-12-06 19:17:21,858 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 787 transitions. Word has length 51 [2021-12-06 19:17:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:21,858 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 787 transitions. [2021-12-06 19:17:21,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 787 transitions. [2021-12-06 19:17:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:17:21,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:21,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:21,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 19:17:21,860 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1364251108, now seen corresponding path program 1 times [2021-12-06 19:17:21,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:21,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509826957] [2021-12-06 19:17:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:21,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 19:17:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:17:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:21,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:21,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509826957] [2021-12-06 19:17:21,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509826957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:21,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:21,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:21,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077572802] [2021-12-06 19:17:21,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:21,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:21,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:21,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:21,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:21,894 INFO L87 Difference]: Start difference. First operand 599 states and 787 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:22,073 INFO L93 Difference]: Finished difference Result 605 states and 794 transitions. [2021-12-06 19:17:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-06 19:17:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:22,074 INFO L225 Difference]: With dead ends: 605 [2021-12-06 19:17:22,074 INFO L226 Difference]: Without dead ends: 605 [2021-12-06 19:17:22,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:22,075 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 98 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:22,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 2059 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2021-12-06 19:17:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 589. [2021-12-06 19:17:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 499 states have (on average 1.3026052104208417) internal successors, (650), 506 states have internal predecessors, (650), 55 states have call successors, (55), 27 states have call predecessors, (55), 34 states have return successors, (66), 55 states have call predecessors, (66), 50 states have call successors, (66) [2021-12-06 19:17:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 771 transitions. [2021-12-06 19:17:22,081 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 771 transitions. Word has length 51 [2021-12-06 19:17:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:22,081 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 771 transitions. [2021-12-06 19:17:22,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 771 transitions. [2021-12-06 19:17:22,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 19:17:22,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:22,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:22,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 19:17:22,083 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2021-12-06 19:17:22,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:22,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001356593] [2021-12-06 19:17:22,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:22,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:17:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:22,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:22,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001356593] [2021-12-06 19:17:22,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001356593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:22,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:22,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:22,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620352542] [2021-12-06 19:17:22,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:22,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:22,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:22,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:22,117 INFO L87 Difference]: Start difference. First operand 589 states and 771 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:22,277 INFO L93 Difference]: Finished difference Result 601 states and 788 transitions. [2021-12-06 19:17:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:22,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2021-12-06 19:17:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:22,278 INFO L225 Difference]: With dead ends: 601 [2021-12-06 19:17:22,279 INFO L226 Difference]: Without dead ends: 596 [2021-12-06 19:17:22,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:22,279 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 171 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:22,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1809 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-12-06 19:17:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 584. [2021-12-06 19:17:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 495 states have (on average 1.303030303030303) internal successors, (645), 502 states have internal predecessors, (645), 54 states have call successors, (54), 27 states have call predecessors, (54), 34 states have return successors, (65), 54 states have call predecessors, (65), 49 states have call successors, (65) [2021-12-06 19:17:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 764 transitions. [2021-12-06 19:17:22,286 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 764 transitions. Word has length 52 [2021-12-06 19:17:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:22,286 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 764 transitions. [2021-12-06 19:17:22,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,286 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 764 transitions. [2021-12-06 19:17:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 19:17:22,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:22,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:22,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 19:17:22,288 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash 432060647, now seen corresponding path program 1 times [2021-12-06 19:17:22,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:22,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872407225] [2021-12-06 19:17:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:22,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:22,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:22,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872407225] [2021-12-06 19:17:22,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872407225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:22,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:22,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:22,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129743857] [2021-12-06 19:17:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:22,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:22,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:22,327 INFO L87 Difference]: Start difference. First operand 584 states and 764 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:22,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:22,515 INFO L93 Difference]: Finished difference Result 700 states and 916 transitions. [2021-12-06 19:17:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2021-12-06 19:17:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:22,517 INFO L225 Difference]: With dead ends: 700 [2021-12-06 19:17:22,517 INFO L226 Difference]: Without dead ends: 700 [2021-12-06 19:17:22,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:22,517 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 292 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:22,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1082 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-12-06 19:17:22,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 616. [2021-12-06 19:17:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2971428571428572) internal successors, (681), 532 states have internal predecessors, (681), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2021-12-06 19:17:22,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 802 transitions. [2021-12-06 19:17:22,524 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 802 transitions. Word has length 52 [2021-12-06 19:17:22,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:22,524 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 802 transitions. [2021-12-06 19:17:22,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:22,524 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 802 transitions. [2021-12-06 19:17:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:17:22,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:22,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:22,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 19:17:22,526 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:22,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2021-12-06 19:17:22,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:22,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082125601] [2021-12-06 19:17:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:22,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:22,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:22,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082125601] [2021-12-06 19:17:22,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082125601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:22,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:22,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:22,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336367308] [2021-12-06 19:17:22,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:22,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:22,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:22,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:22,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:22,564 INFO L87 Difference]: Start difference. First operand 616 states and 802 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:22,867 INFO L93 Difference]: Finished difference Result 697 states and 910 transitions. [2021-12-06 19:17:22,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:17:22,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:17:22,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:22,868 INFO L225 Difference]: With dead ends: 697 [2021-12-06 19:17:22,868 INFO L226 Difference]: Without dead ends: 697 [2021-12-06 19:17:22,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:22,869 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 725 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:22,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 1544 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:22,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-12-06 19:17:22,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 616. [2021-12-06 19:17:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2933333333333332) internal successors, (679), 532 states have internal predecessors, (679), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2021-12-06 19:17:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 800 transitions. [2021-12-06 19:17:22,875 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 800 transitions. Word has length 53 [2021-12-06 19:17:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:22,876 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 800 transitions. [2021-12-06 19:17:22,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 800 transitions. [2021-12-06 19:17:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 19:17:22,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:22,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:22,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 19:17:22,877 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2021-12-06 19:17:22,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:22,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773252257] [2021-12-06 19:17:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:22,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:17:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:22,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:22,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773252257] [2021-12-06 19:17:22,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773252257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:22,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:22,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:17:22,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515436062] [2021-12-06 19:17:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:22,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:17:22,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:22,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:17:22,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:22,969 INFO L87 Difference]: Start difference. First operand 616 states and 800 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:17:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:23,373 INFO L93 Difference]: Finished difference Result 668 states and 864 transitions. [2021-12-06 19:17:23,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:23,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2021-12-06 19:17:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:23,374 INFO L225 Difference]: With dead ends: 668 [2021-12-06 19:17:23,374 INFO L226 Difference]: Without dead ends: 651 [2021-12-06 19:17:23,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:17:23,375 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 263 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:23,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3833 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-12-06 19:17:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 614. [2021-12-06 19:17:23,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 524 states have (on average 1.2919847328244274) internal successors, (677), 531 states have internal predecessors, (677), 53 states have call successors, (53), 27 states have call predecessors, (53), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2021-12-06 19:17:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 796 transitions. [2021-12-06 19:17:23,382 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 796 transitions. Word has length 59 [2021-12-06 19:17:23,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:23,382 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 796 transitions. [2021-12-06 19:17:23,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:17:23,382 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 796 transitions. [2021-12-06 19:17:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 19:17:23,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:23,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:23,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 19:17:23,383 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:23,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2021-12-06 19:17:23,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:23,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382052587] [2021-12-06 19:17:23,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:23,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:17:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:23,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:23,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382052587] [2021-12-06 19:17:23,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382052587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:23,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:23,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-06 19:17:23,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381388459] [2021-12-06 19:17:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:23,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 19:17:23,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 19:17:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:23,483 INFO L87 Difference]: Start difference. First operand 614 states and 796 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:23,936 INFO L93 Difference]: Finished difference Result 643 states and 832 transitions. [2021-12-06 19:17:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 19:17:23,937 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2021-12-06 19:17:23,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:23,938 INFO L225 Difference]: With dead ends: 643 [2021-12-06 19:17:23,938 INFO L226 Difference]: Without dead ends: 622 [2021-12-06 19:17:23,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:17:23,939 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 252 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:23,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 4286 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:23,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2021-12-06 19:17:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2021-12-06 19:17:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 521 states have (on average 1.2917466410748562) internal successors, (673), 528 states have internal predecessors, (673), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (65), 54 states have call predecessors, (65), 47 states have call successors, (65) [2021-12-06 19:17:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2021-12-06 19:17:23,945 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 55 [2021-12-06 19:17:23,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:23,945 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2021-12-06 19:17:23,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2021-12-06 19:17:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:23,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:23,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 19:17:23,947 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2021-12-06 19:17:23,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:23,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061877846] [2021-12-06 19:17:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:23,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 19:17:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:17:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:23,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:23,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061877846] [2021-12-06 19:17:23,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061877846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:23,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:23,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:23,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121187213] [2021-12-06 19:17:23,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:23,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:23,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:23,979 INFO L87 Difference]: Start difference. First operand 610 states and 790 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:24,117 INFO L93 Difference]: Finished difference Result 622 states and 807 transitions. [2021-12-06 19:17:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:17:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:24,119 INFO L225 Difference]: With dead ends: 622 [2021-12-06 19:17:24,119 INFO L226 Difference]: Without dead ends: 617 [2021-12-06 19:17:24,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:24,119 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 171 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:24,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1731 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-12-06 19:17:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 605. [2021-12-06 19:17:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 517 states have (on average 1.2920696324951644) internal successors, (668), 524 states have internal predecessors, (668), 51 states have call successors, (51), 27 states have call predecessors, (51), 36 states have return successors, (64), 53 states have call predecessors, (64), 46 states have call successors, (64) [2021-12-06 19:17:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 783 transitions. [2021-12-06 19:17:24,125 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 783 transitions. Word has length 54 [2021-12-06 19:17:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:24,125 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 783 transitions. [2021-12-06 19:17:24,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 783 transitions. [2021-12-06 19:17:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:24,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:24,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:24,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 19:17:24,127 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2021-12-06 19:17:24,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876589758] [2021-12-06 19:17:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:24,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:17:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:24,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:24,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876589758] [2021-12-06 19:17:24,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876589758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:24,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:24,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:24,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811195996] [2021-12-06 19:17:24,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:24,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:24,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:24,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:24,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:24,176 INFO L87 Difference]: Start difference. First operand 605 states and 783 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:24,389 INFO L93 Difference]: Finished difference Result 637 states and 823 transitions. [2021-12-06 19:17:24,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:17:24,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:17:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:24,391 INFO L225 Difference]: With dead ends: 637 [2021-12-06 19:17:24,391 INFO L226 Difference]: Without dead ends: 614 [2021-12-06 19:17:24,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:24,391 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 232 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:24,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3177 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-12-06 19:17:24,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 602. [2021-12-06 19:17:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 515 states have (on average 1.2912621359223302) internal successors, (665), 522 states have internal predecessors, (665), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2021-12-06 19:17:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 778 transitions. [2021-12-06 19:17:24,397 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 778 transitions. Word has length 54 [2021-12-06 19:17:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:24,397 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 778 transitions. [2021-12-06 19:17:24,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,397 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 778 transitions. [2021-12-06 19:17:24,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:24,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:24,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:24,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 19:17:24,399 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1138075636, now seen corresponding path program 1 times [2021-12-06 19:17:24,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:24,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087799933] [2021-12-06 19:17:24,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:24,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:24,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:24,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087799933] [2021-12-06 19:17:24,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087799933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:24,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:24,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:24,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102700939] [2021-12-06 19:17:24,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:24,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:24,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:24,438 INFO L87 Difference]: Start difference. First operand 602 states and 778 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:24,706 INFO L93 Difference]: Finished difference Result 683 states and 886 transitions. [2021-12-06 19:17:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:17:24,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:17:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:24,707 INFO L225 Difference]: With dead ends: 683 [2021-12-06 19:17:24,708 INFO L226 Difference]: Without dead ends: 683 [2021-12-06 19:17:24,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:24,708 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 774 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:24,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 1212 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-12-06 19:17:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 599. [2021-12-06 19:17:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 512 states have (on average 1.2890625) internal successors, (660), 519 states have internal predecessors, (660), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2021-12-06 19:17:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 773 transitions. [2021-12-06 19:17:24,714 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 773 transitions. Word has length 54 [2021-12-06 19:17:24,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:24,715 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 773 transitions. [2021-12-06 19:17:24,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 773 transitions. [2021-12-06 19:17:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:24,716 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:24,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:24,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 19:17:24,716 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:24,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2021-12-06 19:17:24,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:24,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165639718] [2021-12-06 19:17:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:24,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:24,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:24,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165639718] [2021-12-06 19:17:24,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165639718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:24,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:24,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:24,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198151589] [2021-12-06 19:17:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:24,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:24,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:24,789 INFO L87 Difference]: Start difference. First operand 599 states and 773 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:25,184 INFO L93 Difference]: Finished difference Result 618 states and 797 transitions. [2021-12-06 19:17:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:17:25,184 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2021-12-06 19:17:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:25,185 INFO L225 Difference]: With dead ends: 618 [2021-12-06 19:17:25,185 INFO L226 Difference]: Without dead ends: 593 [2021-12-06 19:17:25,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:17:25,186 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 219 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:25,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2795 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-12-06 19:17:25,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2021-12-06 19:17:25,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 491 states have (on average 1.2830957230142566) internal successors, (630), 498 states have internal predecessors, (630), 50 states have call successors, (50), 27 states have call predecessors, (50), 35 states have return successors, (62), 51 states have call predecessors, (62), 45 states have call successors, (62) [2021-12-06 19:17:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 742 transitions. [2021-12-06 19:17:25,192 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 742 transitions. Word has length 54 [2021-12-06 19:17:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:25,192 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 742 transitions. [2021-12-06 19:17:25,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:25,193 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 742 transitions. [2021-12-06 19:17:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:25,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:25,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:25,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 19:17:25,194 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2015257924, now seen corresponding path program 1 times [2021-12-06 19:17:25,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:25,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459175113] [2021-12-06 19:17:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:25,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:25,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459175113] [2021-12-06 19:17:25,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459175113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:25,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:25,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:17:25,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805824856] [2021-12-06 19:17:25,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:25,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:17:25,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:25,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:17:25,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:25,226 INFO L87 Difference]: Start difference. First operand 577 states and 742 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:25,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:25,362 INFO L93 Difference]: Finished difference Result 592 states and 756 transitions. [2021-12-06 19:17:25,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:25,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2021-12-06 19:17:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:25,363 INFO L225 Difference]: With dead ends: 592 [2021-12-06 19:17:25,363 INFO L226 Difference]: Without dead ends: 582 [2021-12-06 19:17:25,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:25,364 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 233 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:25,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 960 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-12-06 19:17:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 566. [2021-12-06 19:17:25,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2744282744282744) internal successors, (613), 488 states have internal predecessors, (613), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2021-12-06 19:17:25,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 724 transitions. [2021-12-06 19:17:25,370 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 724 transitions. Word has length 54 [2021-12-06 19:17:25,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:25,370 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 724 transitions. [2021-12-06 19:17:25,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:25,370 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 724 transitions. [2021-12-06 19:17:25,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:17:25,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:25,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:25,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 19:17:25,371 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:25,372 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2021-12-06 19:17:25,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:25,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250530635] [2021-12-06 19:17:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:25,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 19:17:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:25,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:25,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250530635] [2021-12-06 19:17:25,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250530635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:25,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:25,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:25,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221533370] [2021-12-06 19:17:25,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:25,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:25,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:25,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:25,414 INFO L87 Difference]: Start difference. First operand 566 states and 724 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:25,640 INFO L93 Difference]: Finished difference Result 596 states and 761 transitions. [2021-12-06 19:17:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2021-12-06 19:17:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:25,642 INFO L225 Difference]: With dead ends: 596 [2021-12-06 19:17:25,642 INFO L226 Difference]: Without dead ends: 596 [2021-12-06 19:17:25,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:25,642 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 188 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:25,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 2106 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-12-06 19:17:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 566. [2021-12-06 19:17:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2723492723492724) internal successors, (612), 488 states have internal predecessors, (612), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2021-12-06 19:17:25,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 723 transitions. [2021-12-06 19:17:25,649 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 723 transitions. Word has length 56 [2021-12-06 19:17:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:25,649 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 723 transitions. [2021-12-06 19:17:25,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:25,649 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 723 transitions. [2021-12-06 19:17:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:17:25,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:25,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:25,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 19:17:25,650 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2021-12-06 19:17:25,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:25,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084116890] [2021-12-06 19:17:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:25,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 19:17:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:25,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:25,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084116890] [2021-12-06 19:17:25,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084116890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:25,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:25,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:17:25,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108038386] [2021-12-06 19:17:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:25,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:17:25,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:17:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:25,736 INFO L87 Difference]: Start difference. First operand 566 states and 723 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:26,121 INFO L93 Difference]: Finished difference Result 618 states and 787 transitions. [2021-12-06 19:17:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2021-12-06 19:17:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:26,122 INFO L225 Difference]: With dead ends: 618 [2021-12-06 19:17:26,122 INFO L226 Difference]: Without dead ends: 591 [2021-12-06 19:17:26,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:17:26,123 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 277 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:26,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3496 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:26,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-12-06 19:17:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 561. [2021-12-06 19:17:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 477 states have (on average 1.2683438155136268) internal successors, (605), 484 states have internal predecessors, (605), 49 states have call successors, (49), 27 states have call predecessors, (49), 34 states have return successors, (59), 49 states have call predecessors, (59), 44 states have call successors, (59) [2021-12-06 19:17:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 713 transitions. [2021-12-06 19:17:26,129 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 713 transitions. Word has length 56 [2021-12-06 19:17:26,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:26,129 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 713 transitions. [2021-12-06 19:17:26,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:26,129 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 713 transitions. [2021-12-06 19:17:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:17:26,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:26,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:26,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 19:17:26,130 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:26,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1983153674, now seen corresponding path program 1 times [2021-12-06 19:17:26,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:26,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587285570] [2021-12-06 19:17:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:26,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 19:17:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:26,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:26,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587285570] [2021-12-06 19:17:26,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587285570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:26,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:26,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:26,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404444894] [2021-12-06 19:17:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:26,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:26,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:26,169 INFO L87 Difference]: Start difference. First operand 561 states and 713 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:26,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:26,369 INFO L93 Difference]: Finished difference Result 573 states and 730 transitions. [2021-12-06 19:17:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2021-12-06 19:17:26,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:26,371 INFO L225 Difference]: With dead ends: 573 [2021-12-06 19:17:26,371 INFO L226 Difference]: Without dead ends: 567 [2021-12-06 19:17:26,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:26,375 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 264 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:26,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 1525 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-12-06 19:17:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 555. [2021-12-06 19:17:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 472 states have (on average 1.2690677966101696) internal successors, (599), 479 states have internal predecessors, (599), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2021-12-06 19:17:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 705 transitions. [2021-12-06 19:17:26,380 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 705 transitions. Word has length 56 [2021-12-06 19:17:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:26,380 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 705 transitions. [2021-12-06 19:17:26,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 705 transitions. [2021-12-06 19:17:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:17:26,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:26,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:26,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 19:17:26,382 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash 297829050, now seen corresponding path program 1 times [2021-12-06 19:17:26,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:26,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629553331] [2021-12-06 19:17:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:26,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:26,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:26,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629553331] [2021-12-06 19:17:26,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629553331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:26,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:26,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:26,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255676886] [2021-12-06 19:17:26,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:26,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:26,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:26,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:26,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:26,457 INFO L87 Difference]: Start difference. First operand 555 states and 705 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:26,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:26,796 INFO L93 Difference]: Finished difference Result 627 states and 787 transitions. [2021-12-06 19:17:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:17:26,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-12-06 19:17:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:26,797 INFO L225 Difference]: With dead ends: 627 [2021-12-06 19:17:26,797 INFO L226 Difference]: Without dead ends: 606 [2021-12-06 19:17:26,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:17:26,798 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 295 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:26,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2705 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-06 19:17:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 561. [2021-12-06 19:17:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 478 states have (on average 1.2573221757322175) internal successors, (601), 485 states have internal predecessors, (601), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2021-12-06 19:17:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 707 transitions. [2021-12-06 19:17:26,804 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 707 transitions. Word has length 56 [2021-12-06 19:17:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:26,804 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 707 transitions. [2021-12-06 19:17:26,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 707 transitions. [2021-12-06 19:17:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:17:26,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:26,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:26,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 19:17:26,805 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:26,806 INFO L85 PathProgramCache]: Analyzing trace with hash -353317419, now seen corresponding path program 1 times [2021-12-06 19:17:26,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:26,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454733995] [2021-12-06 19:17:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:26,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:17:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:17:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:26,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:26,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454733995] [2021-12-06 19:17:26,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454733995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:26,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:26,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:17:26,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417502226] [2021-12-06 19:17:26,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:26,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:17:26,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:17:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:26,848 INFO L87 Difference]: Start difference. First operand 561 states and 707 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:27,084 INFO L93 Difference]: Finished difference Result 572 states and 722 transitions. [2021-12-06 19:17:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:17:27,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2021-12-06 19:17:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:27,085 INFO L225 Difference]: With dead ends: 572 [2021-12-06 19:17:27,085 INFO L226 Difference]: Without dead ends: 561 [2021-12-06 19:17:27,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:27,086 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 170 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:27,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 1892 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:27,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-12-06 19:17:27,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 549. [2021-12-06 19:17:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 467 states have (on average 1.2526766595289078) internal successors, (585), 474 states have internal predecessors, (585), 47 states have call successors, (47), 27 states have call predecessors, (47), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2021-12-06 19:17:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 689 transitions. [2021-12-06 19:17:27,091 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 689 transitions. Word has length 58 [2021-12-06 19:17:27,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:27,091 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 689 transitions. [2021-12-06 19:17:27,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:17:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 689 transitions. [2021-12-06 19:17:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 19:17:27,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:27,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:27,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-06 19:17:27,093 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:27,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2021-12-06 19:17:27,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:27,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872678020] [2021-12-06 19:17:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:27,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:17:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:17:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:27,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:27,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872678020] [2021-12-06 19:17:27,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872678020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:27,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:27,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:17:27,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765452756] [2021-12-06 19:17:27,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:27,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:17:27,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:27,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:17:27,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:27,210 INFO L87 Difference]: Start difference. First operand 549 states and 689 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:27,678 INFO L93 Difference]: Finished difference Result 574 states and 720 transitions. [2021-12-06 19:17:27,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:17:27,679 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2021-12-06 19:17:27,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:27,680 INFO L225 Difference]: With dead ends: 574 [2021-12-06 19:17:27,680 INFO L226 Difference]: Without dead ends: 556 [2021-12-06 19:17:27,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:17:27,680 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 207 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:27,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3049 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:17:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-12-06 19:17:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 544. [2021-12-06 19:17:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 464 states have (on average 1.2521551724137931) internal successors, (581), 471 states have internal predecessors, (581), 45 states have call successors, (45), 27 states have call predecessors, (45), 34 states have return successors, (55), 45 states have call predecessors, (55), 40 states have call successors, (55) [2021-12-06 19:17:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 681 transitions. [2021-12-06 19:17:27,685 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 681 transitions. Word has length 64 [2021-12-06 19:17:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:27,686 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 681 transitions. [2021-12-06 19:17:27,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 681 transitions. [2021-12-06 19:17:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:17:27,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:27,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:27,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-06 19:17:27,687 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2021-12-06 19:17:27,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:27,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894882599] [2021-12-06 19:17:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:27,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:17:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:27,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:27,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894882599] [2021-12-06 19:17:27,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894882599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:27,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:27,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:27,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28989350] [2021-12-06 19:17:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:27,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:27,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:27,774 INFO L87 Difference]: Start difference. First operand 544 states and 681 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:28,135 INFO L93 Difference]: Finished difference Result 555 states and 696 transitions. [2021-12-06 19:17:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-12-06 19:17:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:28,137 INFO L225 Difference]: With dead ends: 555 [2021-12-06 19:17:28,137 INFO L226 Difference]: Without dead ends: 514 [2021-12-06 19:17:28,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:28,137 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 115 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:28,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 2879 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-12-06 19:17:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 502. [2021-12-06 19:17:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 427 states have (on average 1.2622950819672132) internal successors, (539), 433 states have internal predecessors, (539), 42 states have call successors, (42), 25 states have call predecessors, (42), 32 states have return successors, (53), 43 states have call predecessors, (53), 38 states have call successors, (53) [2021-12-06 19:17:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 634 transitions. [2021-12-06 19:17:28,142 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 634 transitions. Word has length 57 [2021-12-06 19:17:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:28,142 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 634 transitions. [2021-12-06 19:17:28,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 634 transitions. [2021-12-06 19:17:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:17:28,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:28,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:28,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-06 19:17:28,143 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash -657100087, now seen corresponding path program 1 times [2021-12-06 19:17:28,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:28,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680257958] [2021-12-06 19:17:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:28,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:28,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680257958] [2021-12-06 19:17:28,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680257958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:28,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:28,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:28,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276917272] [2021-12-06 19:17:28,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:28,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:28,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:28,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:28,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:28,233 INFO L87 Difference]: Start difference. First operand 502 states and 634 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:29,053 INFO L93 Difference]: Finished difference Result 956 states and 1210 transitions. [2021-12-06 19:17:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 19:17:29,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2021-12-06 19:17:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:29,055 INFO L225 Difference]: With dead ends: 956 [2021-12-06 19:17:29,055 INFO L226 Difference]: Without dead ends: 949 [2021-12-06 19:17:29,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=1287, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 19:17:29,056 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 943 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:29,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 2410 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:17:29,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2021-12-06 19:17:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 719. [2021-12-06 19:17:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 606 states have (on average 1.2656765676567656) internal successors, (767), 619 states have internal predecessors, (767), 61 states have call successors, (61), 40 states have call predecessors, (61), 51 states have return successors, (80), 59 states have call predecessors, (80), 57 states have call successors, (80) [2021-12-06 19:17:29,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 908 transitions. [2021-12-06 19:17:29,064 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 908 transitions. Word has length 58 [2021-12-06 19:17:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:29,064 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 908 transitions. [2021-12-06 19:17:29,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:29,064 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 908 transitions. [2021-12-06 19:17:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:17:29,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:29,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:29,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-06 19:17:29,066 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:29,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:29,066 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2021-12-06 19:17:29,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:29,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454318942] [2021-12-06 19:17:29,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:29,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:17:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:29,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:29,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454318942] [2021-12-06 19:17:29,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454318942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:29,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:29,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:29,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440473369] [2021-12-06 19:17:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:29,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:29,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:29,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:29,111 INFO L87 Difference]: Start difference. First operand 719 states and 908 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:29,436 INFO L93 Difference]: Finished difference Result 946 states and 1198 transitions. [2021-12-06 19:17:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:29,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2021-12-06 19:17:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:29,438 INFO L225 Difference]: With dead ends: 946 [2021-12-06 19:17:29,438 INFO L226 Difference]: Without dead ends: 946 [2021-12-06 19:17:29,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:17:29,438 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 851 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:29,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [885 Valid, 2128 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2021-12-06 19:17:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 546. [2021-12-06 19:17:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 466 states have (on average 1.2467811158798283) internal successors, (581), 472 states have internal predecessors, (581), 44 states have call successors, (44), 29 states have call predecessors, (44), 35 states have return successors, (55), 44 states have call predecessors, (55), 40 states have call successors, (55) [2021-12-06 19:17:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 680 transitions. [2021-12-06 19:17:29,445 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 680 transitions. Word has length 58 [2021-12-06 19:17:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:29,446 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 680 transitions. [2021-12-06 19:17:29,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:17:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 680 transitions. [2021-12-06 19:17:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-06 19:17:29,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:29,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:29,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-06 19:17:29,447 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:29,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash -924829849, now seen corresponding path program 1 times [2021-12-06 19:17:29,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:29,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198944596] [2021-12-06 19:17:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:29,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:17:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:17:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 19:17:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 19:17:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:29,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:29,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198944596] [2021-12-06 19:17:29,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198944596] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:29,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:29,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:17:29,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544352798] [2021-12-06 19:17:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:29,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:17:29,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:17:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:29,527 INFO L87 Difference]: Start difference. First operand 546 states and 680 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:17:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:29,881 INFO L93 Difference]: Finished difference Result 578 states and 720 transitions. [2021-12-06 19:17:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:17:29,881 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2021-12-06 19:17:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:29,882 INFO L225 Difference]: With dead ends: 578 [2021-12-06 19:17:29,882 INFO L226 Difference]: Without dead ends: 549 [2021-12-06 19:17:29,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:17:29,882 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 223 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:29,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3181 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:29,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-12-06 19:17:29,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 537. [2021-12-06 19:17:29,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 459 states have (on average 1.2440087145969498) internal successors, (571), 465 states have internal predecessors, (571), 42 states have call successors, (42), 29 states have call predecessors, (42), 35 states have return successors, (52), 42 states have call predecessors, (52), 38 states have call successors, (52) [2021-12-06 19:17:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 665 transitions. [2021-12-06 19:17:29,887 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 665 transitions. Word has length 60 [2021-12-06 19:17:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:29,887 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 665 transitions. [2021-12-06 19:17:29,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:17:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 665 transitions. [2021-12-06 19:17:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:17:29,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:29,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:29,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-06 19:17:29,889 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:29,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1589833595, now seen corresponding path program 1 times [2021-12-06 19:17:29,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36332567] [2021-12-06 19:17:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:29,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:17:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:17:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:29,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:17:29,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36332567] [2021-12-06 19:17:29,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36332567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:29,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:29,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:29,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129667424] [2021-12-06 19:17:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:29,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:29,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:17:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:29,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:29,921 INFO L87 Difference]: Start difference. First operand 537 states and 665 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:30,027 INFO L93 Difference]: Finished difference Result 547 states and 677 transitions. [2021-12-06 19:17:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:30,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2021-12-06 19:17:30,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:30,028 INFO L225 Difference]: With dead ends: 547 [2021-12-06 19:17:30,028 INFO L226 Difference]: Without dead ends: 539 [2021-12-06 19:17:30,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:17:30,029 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 156 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:30,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1310 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:30,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-12-06 19:17:30,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 527. [2021-12-06 19:17:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 450 states have (on average 1.2444444444444445) internal successors, (560), 456 states have internal predecessors, (560), 41 states have call successors, (41), 29 states have call predecessors, (41), 35 states have return successors, (50), 41 states have call predecessors, (50), 37 states have call successors, (50) [2021-12-06 19:17:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 651 transitions. [2021-12-06 19:17:30,034 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 651 transitions. Word has length 58 [2021-12-06 19:17:30,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:30,034 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 651 transitions. [2021-12-06 19:17:30,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:30,034 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 651 transitions. [2021-12-06 19:17:30,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:17:30,035 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:30,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:30,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-06 19:17:30,035 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2021-12-06 19:17:30,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:17:30,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625221427] [2021-12-06 19:17:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:30,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:17:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:17:30,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:17:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:17:30,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:17:30,086 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:17:30,087 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-06 19:17:30,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-06 19:17:30,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-06 19:17:30,091 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:30,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:17:30,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:17:30 BoogieIcfgContainer [2021-12-06 19:17:30,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:17:30,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:17:30,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:17:30,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:17:30,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:08" (3/4) ... [2021-12-06 19:17:30,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:17:30,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:17:30,164 INFO L158 Benchmark]: Toolchain (without parser) took 23395.17ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 77.8MB in the beginning and 46.9MB in the end (delta: 30.9MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.17ms. Allocated memory is still 115.3MB. Free memory was 77.6MB in the beginning and 72.1MB in the end (delta: 5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.08ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 65.3MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: Boogie Preprocessor took 72.54ms. Allocated memory is still 115.3MB. Free memory was 65.3MB in the beginning and 60.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: RCFGBuilder took 842.51ms. Allocated memory is still 115.3MB. Free memory was 60.6MB in the beginning and 79.7MB in the end (delta: -19.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,165 INFO L158 Benchmark]: TraceAbstraction took 22018.33ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 79.1MB in the beginning and 46.9MB in the end (delta: 32.2MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2021-12-06 19:17:30,166 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 167.8MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:17:30,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.17ms. Allocated memory is still 115.3MB. Free memory was 77.6MB in the beginning and 72.1MB in the end (delta: 5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.08ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 65.3MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.54ms. Allocated memory is still 115.3MB. Free memory was 65.3MB in the beginning and 60.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 842.51ms. Allocated memory is still 115.3MB. Free memory was 60.6MB in the beginning and 79.7MB in the end (delta: -19.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * TraceAbstraction took 22018.33ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 79.1MB in the beginning and 46.9MB in the end (delta: 32.2MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 167.8MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 21.9s, OverallIterations: 65, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21051 SdHoareTripleChecker+Valid, 14.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20610 mSDsluCounter, 158662 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123601 mSDsCounter, 5588 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35504 IncrementalHoareTripleChecker+Invalid, 41092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5588 mSolverCounterUnsat, 35061 mSDtfsCounter, 35504 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 880 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 605 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1073occurred in iteration=10, InterpolantAutomatonStates: 558, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 64 MinimizatonAttempts, 2819 StatesRemovedByMinimization, 59 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 2863 NumberOfCodeBlocks, 2863 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 2741 ConstructedInterpolants, 0 QuantifiedInterpolants, 7536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 64 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 19:17:30,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:17:31,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:17:31,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:17:31,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:17:31,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:17:31,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:17:31,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:17:31,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:17:31,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:17:31,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:17:31,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:17:31,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:17:31,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:17:31,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:17:31,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:17:31,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:17:31,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:17:31,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:17:31,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:17:31,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:17:31,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:17:31,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:17:31,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:17:31,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:17:31,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:17:31,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:17:31,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:17:31,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:17:31,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:17:31,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:17:31,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:17:31,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:17:31,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:17:31,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:17:31,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:17:31,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:17:31,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:17:31,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:17:31,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:17:31,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:17:31,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:17:31,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 19:17:31,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:17:31,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:17:31,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:17:31,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:17:31,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:17:31,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:17:31,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:17:31,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:17:31,862 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:17:31,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:17:31,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:17:31,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:17:31,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:17:31,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:17:31,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:17:31,863 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 19:17:31,863 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 19:17:31,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:17:31,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:17:31,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:17:31,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:17:31,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:17:31,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:17:31,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:17:31,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:17:31,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 19:17:31,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 19:17:31,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:17:31,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 19:17:31,867 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-12-06 19:17:32,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:17:32,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:17:32,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:17:32,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:17:32,118 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:17:32,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-06 19:17:32,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/abda0250c/54d69e30fc2640488f3075c5a5b3f188/FLAG210f7216b [2021-12-06 19:17:32,655 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:17:32,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-06 19:17:32,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/abda0250c/54d69e30fc2640488f3075c5a5b3f188/FLAG210f7216b [2021-12-06 19:17:33,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/data/abda0250c/54d69e30fc2640488f3075c5a5b3f188 [2021-12-06 19:17:33,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:17:33,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:17:33,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:17:33,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:17:33,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:17:33,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6325e4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33, skipping insertion in model container [2021-12-06 19:17:33,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:17:33,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:17:33,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-06 19:17:33,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:17:33,450 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:17:33,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-06 19:17:33,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:17:33,541 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:17:33,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33 WrapperNode [2021-12-06 19:17:33,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:17:33,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:17:33,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:17:33,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:17:33,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,614 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1444 [2021-12-06 19:17:33,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:17:33,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:17:33,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:17:33,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:17:33,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:17:33,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:17:33,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:17:33,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:17:33,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (1/1) ... [2021-12-06 19:17:33,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:17:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:17:33,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:17:33,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:17:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-12-06 19:17:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-12-06 19:17:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:17:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-12-06 19:17:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-12-06 19:17:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 19:17:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-12-06 19:17:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-12-06 19:17:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-12-06 19:17:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-12-06 19:17:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-06 19:17:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-06 19:17:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-06 19:17:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-06 19:17:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-12-06 19:17:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-12-06 19:17:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-12-06 19:17:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-12-06 19:17:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-12-06 19:17:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-12-06 19:17:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-06 19:17:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-06 19:17:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-06 19:17:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-06 19:17:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-12-06 19:17:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-12-06 19:17:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:17:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:17:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-12-06 19:17:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-12-06 19:17:33,906 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:17:33,908 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:17:33,988 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,029 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-06 19:17:34,029 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-06 19:17:34,076 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-06 19:17:34,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-06 19:17:34,097 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,098 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,100 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,105 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,119 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,121 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,122 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 19:17:34,499 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0bv32; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-12-06 19:17:34,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-12-06 19:17:34,501 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-12-06 19:17:34,534 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:17:34,547 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:17:34,547 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:17:34,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:34 BoogieIcfgContainer [2021-12-06 19:17:34,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:17:34,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:17:34,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:17:34,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:17:34,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:17:33" (1/3) ... [2021-12-06 19:17:34,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de50fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:17:34, skipping insertion in model container [2021-12-06 19:17:34,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:17:33" (2/3) ... [2021-12-06 19:17:34,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de50fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:17:34, skipping insertion in model container [2021-12-06 19:17:34,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:34" (3/3) ... [2021-12-06 19:17:34,556 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-12-06 19:17:34,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:17:34,560 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 19:17:34,595 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:17:34,601 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:17:34,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 19:17:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-06 19:17:34,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 19:17:34,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:34,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:34,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2021-12-06 19:17:34,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:34,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166865709] [2021-12-06 19:17:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:34,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:34,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:34,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:34,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 19:17:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:34,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:34,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:34,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:34,791 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:34,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166865709] [2021-12-06 19:17:34,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166865709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:34,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:34,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:34,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497753929] [2021-12-06 19:17:34,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:34,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:34,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:34,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:34,819 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:34,928 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2021-12-06 19:17:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 19:17:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:34,943 INFO L225 Difference]: With dead ends: 623 [2021-12-06 19:17:34,944 INFO L226 Difference]: Without dead ends: 619 [2021-12-06 19:17:34,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:34,947 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:34,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-12-06 19:17:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2021-12-06 19:17:35,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2021-12-06 19:17:35,022 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2021-12-06 19:17:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:35,022 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2021-12-06 19:17:35,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2021-12-06 19:17:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:17:35,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:35,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:35,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:35,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:35,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:35,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:35,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2021-12-06 19:17:35,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:35,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44095278] [2021-12-06 19:17:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:35,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:35,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:35,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:35,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 19:17:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:35,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:35,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:35,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:35,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:35,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44095278] [2021-12-06 19:17:35,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44095278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:35,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:35,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:35,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516273192] [2021-12-06 19:17:35,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:35,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:35,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:35,445 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:35,500 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2021-12-06 19:17:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:35,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 19:17:35,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:35,505 INFO L225 Difference]: With dead ends: 606 [2021-12-06 19:17:35,505 INFO L226 Difference]: Without dead ends: 606 [2021-12-06 19:17:35,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:35,507 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:35,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-06 19:17:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2021-12-06 19:17:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2021-12-06 19:17:35,552 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2021-12-06 19:17:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:35,552 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2021-12-06 19:17:35,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:35,553 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2021-12-06 19:17:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:17:35,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:35,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:35,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 19:17:35,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:35,756 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:35,758 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2021-12-06 19:17:35,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:35,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88498944] [2021-12-06 19:17:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:35,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:35,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:35,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:35,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 19:17:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:35,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:35,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:35,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:35,893 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:35,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88498944] [2021-12-06 19:17:35,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88498944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:35,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:35,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:17:35,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655739002] [2021-12-06 19:17:35,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:35,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:35,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:35,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:35,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:35,895 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:35,988 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2021-12-06 19:17:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 19:17:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:35,992 INFO L225 Difference]: With dead ends: 602 [2021-12-06 19:17:35,992 INFO L226 Difference]: Without dead ends: 599 [2021-12-06 19:17:35,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:35,993 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:35,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-06 19:17:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-06 19:17:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2021-12-06 19:17:36,014 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2021-12-06 19:17:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:36,014 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2021-12-06 19:17:36,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:36,014 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2021-12-06 19:17:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 19:17:36,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:36,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:36,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 19:17:36,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:36,216 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:36,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2021-12-06 19:17:36,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:36,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481283093] [2021-12-06 19:17:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:36,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:36,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:36,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 19:17:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:36,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:36,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:36,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:36,309 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:36,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481283093] [2021-12-06 19:17:36,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481283093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:36,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:36,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:36,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83562803] [2021-12-06 19:17:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:36,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:36,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:36,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:36,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:36,312 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:36,378 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2021-12-06 19:17:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 19:17:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:36,383 INFO L225 Difference]: With dead ends: 602 [2021-12-06 19:17:36,383 INFO L226 Difference]: Without dead ends: 599 [2021-12-06 19:17:36,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:36,384 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:36,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-06 19:17:36,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-06 19:17:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-06 19:17:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2021-12-06 19:17:36,408 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2021-12-06 19:17:36,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:36,408 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2021-12-06 19:17:36,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2021-12-06 19:17:36,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 19:17:36,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:36,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:36,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 19:17:36,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:36,614 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2021-12-06 19:17:36,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:36,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001841172] [2021-12-06 19:17:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:36,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:36,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:36,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:36,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 19:17:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:36,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:36,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:36,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:36,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:36,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001841172] [2021-12-06 19:17:36,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001841172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:36,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:36,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:36,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341648652] [2021-12-06 19:17:36,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:36,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:36,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:36,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:36,804 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:36,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:36,952 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2021-12-06 19:17:36,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:36,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 19:17:36,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:36,960 INFO L225 Difference]: With dead ends: 851 [2021-12-06 19:17:36,960 INFO L226 Difference]: Without dead ends: 850 [2021-12-06 19:17:36,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:36,961 INFO L933 BasicCegarLoop]: 824 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:36,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 1049 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:36,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2021-12-06 19:17:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2021-12-06 19:17:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2021-12-06 19:17:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2021-12-06 19:17:36,999 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2021-12-06 19:17:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:36,999 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2021-12-06 19:17:36,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2021-12-06 19:17:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:17:37,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:37,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:37,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 19:17:37,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:37,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2021-12-06 19:17:37,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:37,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977718251] [2021-12-06 19:17:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:37,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:37,204 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:37,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 19:17:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:37,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:17:37,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:37,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:37,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:37,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977718251] [2021-12-06 19:17:37,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977718251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:37,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:37,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:37,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049080506] [2021-12-06 19:17:37,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:37,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:37,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:37,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:37,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:37,334 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:37,360 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2021-12-06 19:17:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:37,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 19:17:37,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:37,365 INFO L225 Difference]: With dead ends: 875 [2021-12-06 19:17:37,365 INFO L226 Difference]: Without dead ends: 875 [2021-12-06 19:17:37,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:37,367 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:37,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-12-06 19:17:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2021-12-06 19:17:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2021-12-06 19:17:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2021-12-06 19:17:37,394 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2021-12-06 19:17:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:37,394 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2021-12-06 19:17:37,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2021-12-06 19:17:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-06 19:17:37,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:37,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:37,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 19:17:37,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:37,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:37,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2021-12-06 19:17:37,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:37,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726823203] [2021-12-06 19:17:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:37,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:37,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:37,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:37,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 19:17:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:37,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:37,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:37,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:37,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:37,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726823203] [2021-12-06 19:17:37,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726823203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:37,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:37,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:37,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427029642] [2021-12-06 19:17:37,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:37,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:37,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:37,755 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:38,111 INFO L93 Difference]: Finished difference Result 894 states and 1294 transitions. [2021-12-06 19:17:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:38,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-06 19:17:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:38,116 INFO L225 Difference]: With dead ends: 894 [2021-12-06 19:17:38,116 INFO L226 Difference]: Without dead ends: 894 [2021-12-06 19:17:38,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:38,117 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 1039 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:38,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 862 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-06 19:17:38,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 844. [2021-12-06 19:17:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 696 states have (on average 1.4295977011494252) internal successors, (995), 700 states have internal predecessors, (995), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2021-12-06 19:17:38,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1228 transitions. [2021-12-06 19:17:38,139 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1228 transitions. Word has length 21 [2021-12-06 19:17:38,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:38,140 INFO L470 AbstractCegarLoop]: Abstraction has 844 states and 1228 transitions. [2021-12-06 19:17:38,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:38,140 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1228 transitions. [2021-12-06 19:17:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 19:17:38,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:38,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:38,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 19:17:38,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:38,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:38,343 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2021-12-06 19:17:38,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:38,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386592074] [2021-12-06 19:17:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:38,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:38,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:38,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:38,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 19:17:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:38,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:38,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:38,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:38,446 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:38,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386592074] [2021-12-06 19:17:38,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386592074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:38,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:38,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:38,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342189516] [2021-12-06 19:17:38,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:38,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:38,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:38,448 INFO L87 Difference]: Start difference. First operand 844 states and 1228 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:38,519 INFO L93 Difference]: Finished difference Result 843 states and 1225 transitions. [2021-12-06 19:17:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-06 19:17:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:38,525 INFO L225 Difference]: With dead ends: 843 [2021-12-06 19:17:38,525 INFO L226 Difference]: Without dead ends: 843 [2021-12-06 19:17:38,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:38,526 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:38,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-12-06 19:17:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2021-12-06 19:17:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 696 states have (on average 1.4267241379310345) internal successors, (993), 699 states have internal predecessors, (993), 105 states have call successors, (105), 35 states have call predecessors, (105), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2021-12-06 19:17:38,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1225 transitions. [2021-12-06 19:17:38,558 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1225 transitions. Word has length 23 [2021-12-06 19:17:38,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:38,558 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1225 transitions. [2021-12-06 19:17:38,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:38,558 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1225 transitions. [2021-12-06 19:17:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:38,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:38,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:38,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 19:17:38,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:38,763 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:38,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash -607443031, now seen corresponding path program 1 times [2021-12-06 19:17:38,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:38,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332473601] [2021-12-06 19:17:38,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:38,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:38,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:38,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:38,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 19:17:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:38,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:38,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:38,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:38,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:38,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332473601] [2021-12-06 19:17:38,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332473601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:38,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:38,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:38,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717489956] [2021-12-06 19:17:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:38,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:38,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:38,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:38,890 INFO L87 Difference]: Start difference. First operand 843 states and 1225 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:38,909 INFO L93 Difference]: Finished difference Result 761 states and 1092 transitions. [2021-12-06 19:17:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-06 19:17:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:38,913 INFO L225 Difference]: With dead ends: 761 [2021-12-06 19:17:38,913 INFO L226 Difference]: Without dead ends: 761 [2021-12-06 19:17:38,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:38,914 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 186 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:38,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 1263 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2021-12-06 19:17:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 736. [2021-12-06 19:17:38,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 606 states have (on average 1.4207920792079207) internal successors, (861), 609 states have internal predecessors, (861), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (107), 96 states have call predecessors, (107), 88 states have call successors, (107) [2021-12-06 19:17:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1063 transitions. [2021-12-06 19:17:38,931 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1063 transitions. Word has length 35 [2021-12-06 19:17:38,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:38,931 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1063 transitions. [2021-12-06 19:17:38,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1063 transitions. [2021-12-06 19:17:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:38,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:38,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:38,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:39,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:39,135 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:39,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2021-12-06 19:17:39,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:39,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946842264] [2021-12-06 19:17:39,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:39,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:39,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:39,138 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:39,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 19:17:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:39,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:39,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:39,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:39,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:39,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946842264] [2021-12-06 19:17:39,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946842264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:39,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:39,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:39,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990437694] [2021-12-06 19:17:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:39,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:39,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:39,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:39,353 INFO L87 Difference]: Start difference. First operand 736 states and 1063 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:39,368 INFO L93 Difference]: Finished difference Result 667 states and 953 transitions. [2021-12-06 19:17:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:39,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-06 19:17:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:39,372 INFO L225 Difference]: With dead ends: 667 [2021-12-06 19:17:39,372 INFO L226 Difference]: Without dead ends: 667 [2021-12-06 19:17:39,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:39,373 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 159 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:39,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1313 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:39,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-12-06 19:17:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 640. [2021-12-06 19:17:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4204545454545454) internal successors, (750), 534 states have internal predecessors, (750), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 922 transitions. [2021-12-06 19:17:39,386 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 922 transitions. Word has length 35 [2021-12-06 19:17:39,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:39,386 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 922 transitions. [2021-12-06 19:17:39,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 922 transitions. [2021-12-06 19:17:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:17:39,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:39,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:39,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 19:17:39,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:39,591 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2021-12-06 19:17:39,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:39,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757623414] [2021-12-06 19:17:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:39,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:39,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:39,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 19:17:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:39,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:17:39,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:39,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:39,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:39,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757623414] [2021-12-06 19:17:39,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757623414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:39,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:39,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:39,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280853711] [2021-12-06 19:17:39,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:39,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:39,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:39,883 INFO L87 Difference]: Start difference. First operand 640 states and 922 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:40,168 INFO L93 Difference]: Finished difference Result 640 states and 920 transitions. [2021-12-06 19:17:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:40,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-06 19:17:40,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:40,172 INFO L225 Difference]: With dead ends: 640 [2021-12-06 19:17:40,172 INFO L226 Difference]: Without dead ends: 640 [2021-12-06 19:17:40,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:40,172 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 681 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:40,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 1096 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:17:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-12-06 19:17:40,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2021-12-06 19:17:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4166666666666667) internal successors, (748), 534 states have internal predecessors, (748), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 920 transitions. [2021-12-06 19:17:40,186 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 920 transitions. Word has length 32 [2021-12-06 19:17:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:40,186 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 920 transitions. [2021-12-06 19:17:40,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 920 transitions. [2021-12-06 19:17:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:17:40,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:40,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:40,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:40,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:40,389 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2021-12-06 19:17:40,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:40,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475243816] [2021-12-06 19:17:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:40,390 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:40,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:40,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:40,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 19:17:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:40,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:40,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:40,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:40,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:40,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475243816] [2021-12-06 19:17:40,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475243816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:40,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:40,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:40,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702388124] [2021-12-06 19:17:40,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:40,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:40,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:40,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:40,496 INFO L87 Difference]: Start difference. First operand 640 states and 920 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:40,510 INFO L93 Difference]: Finished difference Result 659 states and 939 transitions. [2021-12-06 19:17:40,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:40,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-12-06 19:17:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:40,513 INFO L225 Difference]: With dead ends: 659 [2021-12-06 19:17:40,513 INFO L226 Difference]: Without dead ends: 659 [2021-12-06 19:17:40,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:40,514 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 569 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:40,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-12-06 19:17:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 639. [2021-12-06 19:17:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 527 states have (on average 1.413662239089184) internal successors, (745), 533 states have internal predecessors, (745), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (86), 81 states have call predecessors, (86), 77 states have call successors, (86) [2021-12-06 19:17:40,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 915 transitions. [2021-12-06 19:17:40,526 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 915 transitions. Word has length 36 [2021-12-06 19:17:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:40,527 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 915 transitions. [2021-12-06 19:17:40,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 915 transitions. [2021-12-06 19:17:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 19:17:40,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:40,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:40,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:40,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:40,730 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2021-12-06 19:17:40,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:40,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311243762] [2021-12-06 19:17:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:40,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:40,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:40,736 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:40,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 19:17:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:40,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:40,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:40,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:40,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:40,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311243762] [2021-12-06 19:17:40,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311243762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:40,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:40,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:40,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547261046] [2021-12-06 19:17:40,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:40,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:40,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:40,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:40,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:40,964 INFO L87 Difference]: Start difference. First operand 639 states and 915 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:41,018 INFO L93 Difference]: Finished difference Result 767 states and 1086 transitions. [2021-12-06 19:17:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:41,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 19:17:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:41,022 INFO L225 Difference]: With dead ends: 767 [2021-12-06 19:17:41,022 INFO L226 Difference]: Without dead ends: 767 [2021-12-06 19:17:41,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:41,022 INFO L933 BasicCegarLoop]: 747 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:41,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1363 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-12-06 19:17:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 690. [2021-12-06 19:17:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 574 states have (on average 1.386759581881533) internal successors, (796), 573 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (97), 92 states have call predecessors, (97), 77 states have call successors, (97) [2021-12-06 19:17:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 977 transitions. [2021-12-06 19:17:41,037 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 977 transitions. Word has length 34 [2021-12-06 19:17:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:41,037 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 977 transitions. [2021-12-06 19:17:41,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 977 transitions. [2021-12-06 19:17:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 19:17:41,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:41,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:41,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 19:17:41,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:41,240 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:41,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:41,242 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2021-12-06 19:17:41,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:41,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077918620] [2021-12-06 19:17:41,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:41,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:41,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:41,248 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:41,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 19:17:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:41,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:17:41,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:41,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:41,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:41,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077918620] [2021-12-06 19:17:41,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077918620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:41,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:41,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:41,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697761409] [2021-12-06 19:17:41,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:41,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:41,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:41,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:41,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:41,420 INFO L87 Difference]: Start difference. First operand 690 states and 977 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:41,642 INFO L93 Difference]: Finished difference Result 671 states and 947 transitions. [2021-12-06 19:17:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 19:17:41,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:41,645 INFO L225 Difference]: With dead ends: 671 [2021-12-06 19:17:41,646 INFO L226 Difference]: Without dead ends: 671 [2021-12-06 19:17:41,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:41,646 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:41,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-12-06 19:17:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2021-12-06 19:17:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 557 states have (on average 1.3913824057450628) internal successors, (775), 563 states have internal predecessors, (775), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 947 transitions. [2021-12-06 19:17:41,658 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 947 transitions. Word has length 34 [2021-12-06 19:17:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:41,658 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 947 transitions. [2021-12-06 19:17:41,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 947 transitions. [2021-12-06 19:17:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:41,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:41,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:41,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 19:17:41,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:41,861 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:41,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:41,861 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2021-12-06 19:17:41,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:41,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207717698] [2021-12-06 19:17:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:41,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:41,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:41,862 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:41,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 19:17:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:41,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:17:41,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:42,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:42,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:42,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207717698] [2021-12-06 19:17:42,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207717698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:42,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:42,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:42,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472592959] [2021-12-06 19:17:42,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:42,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:42,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:42,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:42,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:42,046 INFO L87 Difference]: Start difference. First operand 671 states and 947 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:42,307 INFO L93 Difference]: Finished difference Result 746 states and 1053 transitions. [2021-12-06 19:17:42,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:42,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 19:17:42,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:42,310 INFO L225 Difference]: With dead ends: 746 [2021-12-06 19:17:42,310 INFO L226 Difference]: Without dead ends: 746 [2021-12-06 19:17:42,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:42,310 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 745 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:42,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 1199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:42,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-12-06 19:17:42,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 674. [2021-12-06 19:17:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 560 states have (on average 1.3910714285714285) internal successors, (779), 566 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 951 transitions. [2021-12-06 19:17:42,322 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 951 transitions. Word has length 35 [2021-12-06 19:17:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:42,323 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 951 transitions. [2021-12-06 19:17:42,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 951 transitions. [2021-12-06 19:17:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 19:17:42,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:42,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:42,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 19:17:42,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:42,525 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:42,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:42,526 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2021-12-06 19:17:42,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:42,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571895402] [2021-12-06 19:17:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:42,527 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:42,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:42,528 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 19:17:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:42,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:17:42,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:42,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:42,700 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571895402] [2021-12-06 19:17:42,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571895402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:42,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:42,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:42,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198375376] [2021-12-06 19:17:42,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:42,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:42,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:42,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:42,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:42,701 INFO L87 Difference]: Start difference. First operand 674 states and 951 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:42,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:42,780 INFO L93 Difference]: Finished difference Result 690 states and 967 transitions. [2021-12-06 19:17:42,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:42,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-06 19:17:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:42,783 INFO L225 Difference]: With dead ends: 690 [2021-12-06 19:17:42,783 INFO L226 Difference]: Without dead ends: 673 [2021-12-06 19:17:42,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:42,784 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 52 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:42,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 3220 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-12-06 19:17:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2021-12-06 19:17:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3899821109123434) internal successors, (777), 565 states have internal predecessors, (777), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 949 transitions. [2021-12-06 19:17:42,795 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 949 transitions. Word has length 35 [2021-12-06 19:17:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:42,795 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 949 transitions. [2021-12-06 19:17:42,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 949 transitions. [2021-12-06 19:17:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 19:17:42,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:42,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:42,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:43,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,001 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2021-12-06 19:17:43,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:43,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438789435] [2021-12-06 19:17:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:43,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:43,003 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:43,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 19:17:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:43,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:43,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:43,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:43,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:43,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438789435] [2021-12-06 19:17:43,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438789435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:43,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:43,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:43,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972237332] [2021-12-06 19:17:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:43,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:43,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:43,156 INFO L87 Difference]: Start difference. First operand 673 states and 949 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:43,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:43,215 INFO L93 Difference]: Finished difference Result 699 states and 981 transitions. [2021-12-06 19:17:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:43,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-06 19:17:43,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:43,218 INFO L225 Difference]: With dead ends: 699 [2021-12-06 19:17:43,218 INFO L226 Difference]: Without dead ends: 699 [2021-12-06 19:17:43,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:43,219 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 49 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:43,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 1897 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-12-06 19:17:43,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 675. [2021-12-06 19:17:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 561 states have (on average 1.3885918003565063) internal successors, (779), 567 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 951 transitions. [2021-12-06 19:17:43,232 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 951 transitions. Word has length 37 [2021-12-06 19:17:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:43,232 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 951 transitions. [2021-12-06 19:17:43,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:43,232 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 951 transitions. [2021-12-06 19:17:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 19:17:43,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:43,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:43,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 19:17:43,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,437 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1792069090, now seen corresponding path program 1 times [2021-12-06 19:17:43,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:43,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519952000] [2021-12-06 19:17:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:43,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:43,441 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:43,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 19:17:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:43,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:43,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:43,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:43,591 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:43,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519952000] [2021-12-06 19:17:43,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519952000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:43,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:43,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:43,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110227807] [2021-12-06 19:17:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:43,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:43,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:43,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:43,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:43,592 INFO L87 Difference]: Start difference. First operand 675 states and 951 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:43,627 INFO L93 Difference]: Finished difference Result 695 states and 973 transitions. [2021-12-06 19:17:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:43,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-06 19:17:43,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:43,630 INFO L225 Difference]: With dead ends: 695 [2021-12-06 19:17:43,630 INFO L226 Difference]: Without dead ends: 693 [2021-12-06 19:17:43,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:43,631 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 63 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:43,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 1222 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-12-06 19:17:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 689. [2021-12-06 19:17:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 575 states have (on average 1.3843478260869566) internal successors, (796), 581 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 968 transitions. [2021-12-06 19:17:43,644 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 968 transitions. Word has length 37 [2021-12-06 19:17:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:43,644 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 968 transitions. [2021-12-06 19:17:43,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 968 transitions. [2021-12-06 19:17:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:17:43,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:43,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:43,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 19:17:43,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,846 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:43,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash 302691164, now seen corresponding path program 1 times [2021-12-06 19:17:43,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:43,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962269460] [2021-12-06 19:17:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:43,847 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:43,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:43,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:43,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 19:17:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:43,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:17:43,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:44,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:44,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:44,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962269460] [2021-12-06 19:17:44,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962269460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:44,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:44,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:44,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980103218] [2021-12-06 19:17:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:44,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:44,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:44,032 INFO L87 Difference]: Start difference. First operand 689 states and 968 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:44,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:44,110 INFO L93 Difference]: Finished difference Result 705 states and 984 transitions. [2021-12-06 19:17:44,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:44,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 19:17:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:44,113 INFO L225 Difference]: With dead ends: 705 [2021-12-06 19:17:44,113 INFO L226 Difference]: Without dead ends: 688 [2021-12-06 19:17:44,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:44,114 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 39 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:44,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 3848 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-12-06 19:17:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2021-12-06 19:17:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 574 states have (on average 1.3832752613240418) internal successors, (794), 580 states have internal predecessors, (794), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 966 transitions. [2021-12-06 19:17:44,126 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 966 transitions. Word has length 36 [2021-12-06 19:17:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:44,126 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 966 transitions. [2021-12-06 19:17:44,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:44,126 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 966 transitions. [2021-12-06 19:17:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:17:44,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:44,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:44,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:44,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:44,330 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 914570012, now seen corresponding path program 1 times [2021-12-06 19:17:44,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:44,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358065902] [2021-12-06 19:17:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:44,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:44,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:44,334 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:44,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 19:17:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:44,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:17:44,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:44,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:44,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358065902] [2021-12-06 19:17:44,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358065902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:44,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:44,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:44,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331255823] [2021-12-06 19:17:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:44,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:44,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:44,641 INFO L87 Difference]: Start difference. First operand 688 states and 966 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:44,710 INFO L93 Difference]: Finished difference Result 698 states and 976 transitions. [2021-12-06 19:17:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:44,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 19:17:44,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:44,713 INFO L225 Difference]: With dead ends: 698 [2021-12-06 19:17:44,713 INFO L226 Difference]: Without dead ends: 673 [2021-12-06 19:17:44,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:44,714 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 52 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:44,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 3197 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-12-06 19:17:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2021-12-06 19:17:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3917710196779964) internal successors, (778), 565 states have internal predecessors, (778), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2021-12-06 19:17:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 950 transitions. [2021-12-06 19:17:44,723 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 950 transitions. Word has length 36 [2021-12-06 19:17:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:44,723 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 950 transitions. [2021-12-06 19:17:44,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:17:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 950 transitions. [2021-12-06 19:17:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 19:17:44,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:44,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:44,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 19:17:44,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:44,925 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:44,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash 366960515, now seen corresponding path program 1 times [2021-12-06 19:17:44,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:44,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013976504] [2021-12-06 19:17:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:44,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:44,929 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:44,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 19:17:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:17:45,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:45,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:45,106 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:45,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013976504] [2021-12-06 19:17:45,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013976504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:45,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:45,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:45,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37006276] [2021-12-06 19:17:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:45,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:45,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:45,108 INFO L87 Difference]: Start difference. First operand 673 states and 950 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:45,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:45,354 INFO L93 Difference]: Finished difference Result 782 states and 1094 transitions. [2021-12-06 19:17:45,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:45,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-06 19:17:45,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:45,359 INFO L225 Difference]: With dead ends: 782 [2021-12-06 19:17:45,359 INFO L226 Difference]: Without dead ends: 780 [2021-12-06 19:17:45,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:45,360 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 749 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:45,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 1135 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:45,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-12-06 19:17:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 702. [2021-12-06 19:17:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 586 states have (on average 1.378839590443686) internal successors, (808), 592 states have internal predecessors, (808), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2021-12-06 19:17:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 982 transitions. [2021-12-06 19:17:45,375 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 982 transitions. Word has length 39 [2021-12-06 19:17:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:45,376 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 982 transitions. [2021-12-06 19:17:45,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 982 transitions. [2021-12-06 19:17:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 19:17:45,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:45,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:45,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-12-06 19:17:45,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:45,579 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1196068657, now seen corresponding path program 1 times [2021-12-06 19:17:45,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:45,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081032690] [2021-12-06 19:17:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:45,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:45,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:45,584 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:45,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 19:17:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:45,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:45,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:45,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081032690] [2021-12-06 19:17:45,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081032690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:45,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:45,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:45,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916502796] [2021-12-06 19:17:45,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:45,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:45,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:45,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:45,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:45,746 INFO L87 Difference]: Start difference. First operand 702 states and 982 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:45,856 INFO L93 Difference]: Finished difference Result 720 states and 1001 transitions. [2021-12-06 19:17:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:45,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 19:17:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:45,860 INFO L225 Difference]: With dead ends: 720 [2021-12-06 19:17:45,860 INFO L226 Difference]: Without dead ends: 700 [2021-12-06 19:17:45,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:45,860 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 60 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:45,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3690 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-12-06 19:17:45,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2021-12-06 19:17:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 584 states have (on average 1.3767123287671232) internal successors, (804), 590 states have internal predecessors, (804), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2021-12-06 19:17:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 978 transitions. [2021-12-06 19:17:45,873 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 978 transitions. Word has length 40 [2021-12-06 19:17:45,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:45,873 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 978 transitions. [2021-12-06 19:17:45,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 978 transitions. [2021-12-06 19:17:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 19:17:45,875 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:45,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:45,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-12-06 19:17:46,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:46,075 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2021-12-06 19:17:46,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:46,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304972293] [2021-12-06 19:17:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:46,076 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:46,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:46,077 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:46,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 19:17:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:46,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:46,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:46,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:46,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:46,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304972293] [2021-12-06 19:17:46,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304972293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:46,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:46,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:46,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199121782] [2021-12-06 19:17:46,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:46,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:46,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:46,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:46,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:46,201 INFO L87 Difference]: Start difference. First operand 700 states and 978 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:46,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:46,394 INFO L93 Difference]: Finished difference Result 1246 states and 1751 transitions. [2021-12-06 19:17:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:46,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-12-06 19:17:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:46,399 INFO L225 Difference]: With dead ends: 1246 [2021-12-06 19:17:46,400 INFO L226 Difference]: Without dead ends: 1246 [2021-12-06 19:17:46,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:46,400 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 547 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:46,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 3923 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:17:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2021-12-06 19:17:46,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1037. [2021-12-06 19:17:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 859 states have (on average 1.4016298020954598) internal successors, (1204), 883 states have internal predecessors, (1204), 126 states have call successors, (126), 41 states have call predecessors, (126), 51 states have return successors, (140), 112 states have call predecessors, (140), 119 states have call successors, (140) [2021-12-06 19:17:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1470 transitions. [2021-12-06 19:17:46,419 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1470 transitions. Word has length 43 [2021-12-06 19:17:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:46,419 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1470 transitions. [2021-12-06 19:17:46,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1470 transitions. [2021-12-06 19:17:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:46,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:46,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:46,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 19:17:46,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:46,622 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:46,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1615816211, now seen corresponding path program 1 times [2021-12-06 19:17:46,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:46,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161246614] [2021-12-06 19:17:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:46,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:46,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:46,623 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:46,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 19:17:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:46,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:17:46,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:46,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:46,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:46,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161246614] [2021-12-06 19:17:46,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161246614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:46,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:46,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:46,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254074391] [2021-12-06 19:17:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:46,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:46,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:46,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:46,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:46,733 INFO L87 Difference]: Start difference. First operand 1037 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:46,765 INFO L93 Difference]: Finished difference Result 1012 states and 1434 transitions. [2021-12-06 19:17:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:46,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-12-06 19:17:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:46,770 INFO L225 Difference]: With dead ends: 1012 [2021-12-06 19:17:46,770 INFO L226 Difference]: Without dead ends: 1012 [2021-12-06 19:17:46,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:46,770 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 9 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:46,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1234 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2021-12-06 19:17:46,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2021-12-06 19:17:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 837 states have (on average 1.3990442054958183) internal successors, (1171), 860 states have internal predecessors, (1171), 125 states have call successors, (125), 41 states have call predecessors, (125), 49 states have return successors, (138), 110 states have call predecessors, (138), 119 states have call successors, (138) [2021-12-06 19:17:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1434 transitions. [2021-12-06 19:17:46,788 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1434 transitions. Word has length 45 [2021-12-06 19:17:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:46,789 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1434 transitions. [2021-12-06 19:17:46,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1434 transitions. [2021-12-06 19:17:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 19:17:46,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:46,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:46,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-12-06 19:17:46,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:46,992 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:46,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:46,993 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2021-12-06 19:17:46,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:46,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287529221] [2021-12-06 19:17:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:46,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:47,002 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:47,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 19:17:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:47,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:47,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:47,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:47,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:47,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287529221] [2021-12-06 19:17:47,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287529221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:47,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:47,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:47,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297382212] [2021-12-06 19:17:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:47,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:47,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:47,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:47,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:47,191 INFO L87 Difference]: Start difference. First operand 1012 states and 1434 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:47,350 INFO L93 Difference]: Finished difference Result 1072 states and 1505 transitions. [2021-12-06 19:17:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2021-12-06 19:17:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:47,355 INFO L225 Difference]: With dead ends: 1072 [2021-12-06 19:17:47,355 INFO L226 Difference]: Without dead ends: 1060 [2021-12-06 19:17:47,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:47,356 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 17 mSDsluCounter, 4938 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:47,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5574 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:47,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2021-12-06 19:17:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2021-12-06 19:17:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (146), 111 states have call predecessors, (146), 119 states have call successors, (146) [2021-12-06 19:17:47,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1465 transitions. [2021-12-06 19:17:47,372 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1465 transitions. Word has length 43 [2021-12-06 19:17:47,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:47,372 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1465 transitions. [2021-12-06 19:17:47,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:47,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1465 transitions. [2021-12-06 19:17:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:47,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:47,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:47,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-12-06 19:17:47,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:47,577 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:47,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2021-12-06 19:17:47,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263857212] [2021-12-06 19:17:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:47,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:47,579 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:47,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 19:17:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:47,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:47,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:47,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:47,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:47,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263857212] [2021-12-06 19:17:47,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263857212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:47,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:47,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:47,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705602567] [2021-12-06 19:17:47,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:47,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:47,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:47,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:47,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:47,745 INFO L87 Difference]: Start difference. First operand 1033 states and 1465 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:47,874 INFO L93 Difference]: Finished difference Result 1072 states and 1504 transitions. [2021-12-06 19:17:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2021-12-06 19:17:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:47,879 INFO L225 Difference]: With dead ends: 1072 [2021-12-06 19:17:47,879 INFO L226 Difference]: Without dead ends: 1060 [2021-12-06 19:17:47,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:47,879 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 21 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:47,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 4969 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2021-12-06 19:17:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2021-12-06 19:17:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (145), 111 states have call predecessors, (145), 119 states have call successors, (145) [2021-12-06 19:17:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1464 transitions. [2021-12-06 19:17:47,894 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1464 transitions. Word has length 44 [2021-12-06 19:17:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:47,894 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1464 transitions. [2021-12-06 19:17:47,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1464 transitions. [2021-12-06 19:17:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:47,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:47,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:47,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:48,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:48,101 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:48,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2021-12-06 19:17:48,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:48,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181239478] [2021-12-06 19:17:48,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:48,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:48,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:48,106 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 19:17:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:48,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:48,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:48,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:48,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:48,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181239478] [2021-12-06 19:17:48,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181239478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:48,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:48,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:48,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688614527] [2021-12-06 19:17:48,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:48,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:48,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:48,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:48,442 INFO L87 Difference]: Start difference. First operand 1033 states and 1464 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:48,603 INFO L93 Difference]: Finished difference Result 1064 states and 1496 transitions. [2021-12-06 19:17:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-06 19:17:48,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:48,607 INFO L225 Difference]: With dead ends: 1064 [2021-12-06 19:17:48,607 INFO L226 Difference]: Without dead ends: 1047 [2021-12-06 19:17:48,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:48,608 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 80 mSDsluCounter, 4981 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:48,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 5615 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-12-06 19:17:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2021-12-06 19:17:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3929824561403508) internal successors, (1191), 879 states have internal predecessors, (1191), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2021-12-06 19:17:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1459 transitions. [2021-12-06 19:17:48,624 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1459 transitions. Word has length 47 [2021-12-06 19:17:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:48,624 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1459 transitions. [2021-12-06 19:17:48,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1459 transitions. [2021-12-06 19:17:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:48,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:48,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:48,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-12-06 19:17:48,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:48,830 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2021-12-06 19:17:48,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:48,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626853429] [2021-12-06 19:17:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:48,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:48,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:48,835 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:48,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-06 19:17:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:49,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:49,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:49,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:49,127 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:49,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626853429] [2021-12-06 19:17:49,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626853429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:49,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:49,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:49,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729531559] [2021-12-06 19:17:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:49,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:49,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:49,128 INFO L87 Difference]: Start difference. First operand 1031 states and 1459 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:49,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:49,291 INFO L93 Difference]: Finished difference Result 1048 states and 1477 transitions. [2021-12-06 19:17:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-12-06 19:17:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:49,296 INFO L225 Difference]: With dead ends: 1048 [2021-12-06 19:17:49,296 INFO L226 Difference]: Without dead ends: 1031 [2021-12-06 19:17:49,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:49,296 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 62 mSDsluCounter, 4852 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:49,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 5466 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-12-06 19:17:49,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-12-06 19:17:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2021-12-06 19:17:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1453 transitions. [2021-12-06 19:17:49,311 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1453 transitions. Word has length 44 [2021-12-06 19:17:49,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:49,311 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1453 transitions. [2021-12-06 19:17:49,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1453 transitions. [2021-12-06 19:17:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:17:49,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:49,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:49,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-12-06 19:17:49,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:49,514 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2021-12-06 19:17:49,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:49,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933835933] [2021-12-06 19:17:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:49,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:49,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:49,516 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-06 19:17:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:49,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:49,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:49,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:49,719 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:49,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933835933] [2021-12-06 19:17:49,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933835933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:49,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:49,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:17:49,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582415683] [2021-12-06 19:17:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:49,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:17:49,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:17:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:49,721 INFO L87 Difference]: Start difference. First operand 1031 states and 1453 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:49,880 INFO L93 Difference]: Finished difference Result 1071 states and 1493 transitions. [2021-12-06 19:17:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:17:49,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-06 19:17:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:49,885 INFO L225 Difference]: With dead ends: 1071 [2021-12-06 19:17:49,885 INFO L226 Difference]: Without dead ends: 1058 [2021-12-06 19:17:49,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:17:49,885 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 29 mSDsluCounter, 5531 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 6165 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:49,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 6165 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:49,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2021-12-06 19:17:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1031. [2021-12-06 19:17:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2021-12-06 19:17:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1452 transitions. [2021-12-06 19:17:49,902 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1452 transitions. Word has length 46 [2021-12-06 19:17:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1452 transitions. [2021-12-06 19:17:49,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1452 transitions. [2021-12-06 19:17:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:49,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:49,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:49,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:50,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:50,108 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:50,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:50,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1691543900, now seen corresponding path program 1 times [2021-12-06 19:17:50,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:50,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578189107] [2021-12-06 19:17:50,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:50,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:50,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:50,109 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:50,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-12-06 19:17:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:50,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:50,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:50,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:50,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:50,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578189107] [2021-12-06 19:17:50,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578189107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:50,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:50,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:50,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523389860] [2021-12-06 19:17:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:50,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:50,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:50,217 INFO L87 Difference]: Start difference. First operand 1031 states and 1452 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:50,277 INFO L93 Difference]: Finished difference Result 1052 states and 1475 transitions. [2021-12-06 19:17:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:50,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 19:17:50,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:50,281 INFO L225 Difference]: With dead ends: 1052 [2021-12-06 19:17:50,281 INFO L226 Difference]: Without dead ends: 1052 [2021-12-06 19:17:50,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:50,282 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 39 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:50,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1798 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-12-06 19:17:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1033. [2021-12-06 19:17:50,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 857 states have (on average 1.3850641773628938) internal successors, (1187), 881 states have internal predecessors, (1187), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2021-12-06 19:17:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2021-12-06 19:17:50,298 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 44 [2021-12-06 19:17:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:50,298 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2021-12-06 19:17:50,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2021-12-06 19:17:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:50,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:50,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:50,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-12-06 19:17:50,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:50,502 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:50,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1825557406, now seen corresponding path program 1 times [2021-12-06 19:17:50,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:50,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044403337] [2021-12-06 19:17:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:50,504 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:50,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:50,507 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:50,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-12-06 19:17:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:50,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:50,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:50,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:50,686 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:50,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044403337] [2021-12-06 19:17:50,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044403337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:50,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:50,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:50,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100908043] [2021-12-06 19:17:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:50,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:50,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:50,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:50,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:50,688 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:50,795 INFO L93 Difference]: Finished difference Result 1051 states and 1473 transitions. [2021-12-06 19:17:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:50,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 19:17:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:50,799 INFO L225 Difference]: With dead ends: 1051 [2021-12-06 19:17:50,799 INFO L226 Difference]: Without dead ends: 1031 [2021-12-06 19:17:50,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:50,799 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 60 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:50,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3626 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-12-06 19:17:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-12-06 19:17:50,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3812865497076023) internal successors, (1181), 879 states have internal predecessors, (1181), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2021-12-06 19:17:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1448 transitions. [2021-12-06 19:17:50,813 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1448 transitions. Word has length 44 [2021-12-06 19:17:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:50,814 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1448 transitions. [2021-12-06 19:17:50,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1448 transitions. [2021-12-06 19:17:50,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:50,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:50,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:50,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:51,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,017 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:51,018 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2021-12-06 19:17:51,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:51,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75308984] [2021-12-06 19:17:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:51,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:51,022 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:51,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-12-06 19:17:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:51,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:51,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:51,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:51,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:51,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75308984] [2021-12-06 19:17:51,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75308984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:51,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:51,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:51,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631132138] [2021-12-06 19:17:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:51,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:51,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:51,148 INFO L87 Difference]: Start difference. First operand 1031 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:51,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:51,154 INFO L93 Difference]: Finished difference Result 1047 states and 1464 transitions. [2021-12-06 19:17:51,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:51,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 19:17:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:51,159 INFO L225 Difference]: With dead ends: 1047 [2021-12-06 19:17:51,159 INFO L226 Difference]: Without dead ends: 1047 [2021-12-06 19:17:51,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:51,160 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 19 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:51,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:51,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-12-06 19:17:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2021-12-06 19:17:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3801169590643274) internal successors, (1180), 879 states have internal predecessors, (1180), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2021-12-06 19:17:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1447 transitions. [2021-12-06 19:17:51,180 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1447 transitions. Word has length 44 [2021-12-06 19:17:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:51,180 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1447 transitions. [2021-12-06 19:17:51,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1447 transitions. [2021-12-06 19:17:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:17:51,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:51,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:51,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-12-06 19:17:51,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,383 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:51,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:51,385 INFO L85 PathProgramCache]: Analyzing trace with hash 211154290, now seen corresponding path program 1 times [2021-12-06 19:17:51,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:51,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766743361] [2021-12-06 19:17:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:51,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:51,388 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:51,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-12-06 19:17:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:51,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:51,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:51,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:51,513 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:51,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766743361] [2021-12-06 19:17:51,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766743361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:51,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:51,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:51,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357376912] [2021-12-06 19:17:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:51,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:51,514 INFO L87 Difference]: Start difference. First operand 1031 states and 1447 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:51,603 INFO L93 Difference]: Finished difference Result 1046 states and 1462 transitions. [2021-12-06 19:17:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 19:17:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:51,606 INFO L225 Difference]: With dead ends: 1046 [2021-12-06 19:17:51,607 INFO L226 Difference]: Without dead ends: 1019 [2021-12-06 19:17:51,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:51,607 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 68 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:51,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 3584 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-12-06 19:17:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2021-12-06 19:17:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 846 states have (on average 1.3747044917257683) internal successors, (1163), 870 states have internal predecessors, (1163), 121 states have call successors, (121), 41 states have call predecessors, (121), 51 states have return successors, (140), 107 states have call predecessors, (140), 115 states have call successors, (140) [2021-12-06 19:17:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1424 transitions. [2021-12-06 19:17:51,619 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1424 transitions. Word has length 44 [2021-12-06 19:17:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:51,619 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1424 transitions. [2021-12-06 19:17:51,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1424 transitions. [2021-12-06 19:17:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:51,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:51,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:51,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:51,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,823 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:51,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2021-12-06 19:17:51,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:51,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888436363] [2021-12-06 19:17:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:51,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:51,827 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:51,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-12-06 19:17:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:52,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:52,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:52,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:52,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:52,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888436363] [2021-12-06 19:17:52,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888436363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:52,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:52,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:17:52,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522916775] [2021-12-06 19:17:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:52,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:17:52,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:17:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:17:52,137 INFO L87 Difference]: Start difference. First operand 1019 states and 1424 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:52,231 INFO L93 Difference]: Finished difference Result 1061 states and 1498 transitions. [2021-12-06 19:17:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:17:52,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 19:17:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:52,234 INFO L225 Difference]: With dead ends: 1061 [2021-12-06 19:17:52,234 INFO L226 Difference]: Without dead ends: 1061 [2021-12-06 19:17:52,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:17:52,234 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 21 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:52,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1702 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:52,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2021-12-06 19:17:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1033. [2021-12-06 19:17:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.375) internal successors, (1177), 882 states have internal predecessors, (1177), 123 states have call successors, (123), 41 states have call predecessors, (123), 53 states have return successors, (154), 109 states have call predecessors, (154), 117 states have call successors, (154) [2021-12-06 19:17:52,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2021-12-06 19:17:52,248 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 45 [2021-12-06 19:17:52,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:52,248 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2021-12-06 19:17:52,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2021-12-06 19:17:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:52,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:52,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:52,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:52,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:52,451 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:52,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:52,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2021-12-06 19:17:52,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:52,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372380376] [2021-12-06 19:17:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:52,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:52,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:52,452 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:52,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-12-06 19:17:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:52,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:17:52,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:52,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:52,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:52,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372380376] [2021-12-06 19:17:52,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372380376] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:52,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:52,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:17:52,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555481863] [2021-12-06 19:17:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:52,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:17:52,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:17:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:17:52,582 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:52,650 INFO L93 Difference]: Finished difference Result 1068 states and 1530 transitions. [2021-12-06 19:17:52,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:17:52,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 19:17:52,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:52,653 INFO L225 Difference]: With dead ends: 1068 [2021-12-06 19:17:52,653 INFO L226 Difference]: Without dead ends: 1049 [2021-12-06 19:17:52,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:17:52,654 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 60 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:52,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 4789 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-12-06 19:17:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1041. [2021-12-06 19:17:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (186), 109 states have call predecessors, (186), 117 states have call successors, (186) [2021-12-06 19:17:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1490 transitions. [2021-12-06 19:17:52,669 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1490 transitions. Word has length 45 [2021-12-06 19:17:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:52,669 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1490 transitions. [2021-12-06 19:17:52,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1490 transitions. [2021-12-06 19:17:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:52,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:52,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:52,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-12-06 19:17:52,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:52,872 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2021-12-06 19:17:52,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173124755] [2021-12-06 19:17:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:52,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:52,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:52,877 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:52,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-12-06 19:17:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:53,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:17:53,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:53,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:53,213 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:53,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173124755] [2021-12-06 19:17:53,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173124755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:53,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:53,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:53,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412110254] [2021-12-06 19:17:53,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:53,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:53,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:53,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:53,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:53,214 INFO L87 Difference]: Start difference. First operand 1041 states and 1490 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:53,382 INFO L93 Difference]: Finished difference Result 1082 states and 1531 transitions. [2021-12-06 19:17:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:53,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2021-12-06 19:17:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:53,385 INFO L225 Difference]: With dead ends: 1082 [2021-12-06 19:17:53,385 INFO L226 Difference]: Without dead ends: 1068 [2021-12-06 19:17:53,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:53,385 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 46 mSDsluCounter, 5308 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:53,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 5917 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-12-06 19:17:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2021-12-06 19:17:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (185), 109 states have call predecessors, (185), 117 states have call successors, (185) [2021-12-06 19:17:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1489 transitions. [2021-12-06 19:17:53,399 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1489 transitions. Word has length 47 [2021-12-06 19:17:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:53,399 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1489 transitions. [2021-12-06 19:17:53,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1489 transitions. [2021-12-06 19:17:53,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:17:53,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:53,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:53,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-12-06 19:17:53,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:53,602 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:53,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2021-12-06 19:17:53,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058872139] [2021-12-06 19:17:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:53,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:53,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:53,603 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:53,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-12-06 19:17:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:53,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:17:53,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:53,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:53,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:53,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058872139] [2021-12-06 19:17:53,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058872139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:53,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:53,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:53,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003395698] [2021-12-06 19:17:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:53,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:53,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:53,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:53,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:53,789 INFO L87 Difference]: Start difference. First operand 1041 states and 1489 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:53,948 INFO L93 Difference]: Finished difference Result 1082 states and 1530 transitions. [2021-12-06 19:17:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:53,948 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2021-12-06 19:17:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:53,950 INFO L225 Difference]: With dead ends: 1082 [2021-12-06 19:17:53,950 INFO L226 Difference]: Without dead ends: 1068 [2021-12-06 19:17:53,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:53,951 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 46 mSDsluCounter, 5308 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:53,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 5916 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-12-06 19:17:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2021-12-06 19:17:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (184), 109 states have call predecessors, (184), 117 states have call successors, (184) [2021-12-06 19:17:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1488 transitions. [2021-12-06 19:17:53,965 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1488 transitions. Word has length 48 [2021-12-06 19:17:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:53,965 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1488 transitions. [2021-12-06 19:17:53,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1488 transitions. [2021-12-06 19:17:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:17:53,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:53,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:53,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-12-06 19:17:54,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:54,168 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:54,170 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2021-12-06 19:17:54,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:54,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025845516] [2021-12-06 19:17:54,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:54,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:54,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:54,173 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:54,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-12-06 19:17:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:54,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:17:54,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:54,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:54,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:54,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025845516] [2021-12-06 19:17:54,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025845516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:54,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:54,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:17:54,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615103441] [2021-12-06 19:17:54,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:54,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:17:54,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:54,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:17:54,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:54,522 INFO L87 Difference]: Start difference. First operand 1041 states and 1488 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:54,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:54,692 INFO L93 Difference]: Finished difference Result 1082 states and 1529 transitions. [2021-12-06 19:17:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:17:54,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2021-12-06 19:17:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:54,694 INFO L225 Difference]: With dead ends: 1082 [2021-12-06 19:17:54,694 INFO L226 Difference]: Without dead ends: 1068 [2021-12-06 19:17:54,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:54,695 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 42 mSDsluCounter, 5899 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6507 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:54,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 6507 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:54,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-12-06 19:17:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2021-12-06 19:17:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (183), 109 states have call predecessors, (183), 117 states have call successors, (183) [2021-12-06 19:17:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1487 transitions. [2021-12-06 19:17:54,711 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1487 transitions. Word has length 54 [2021-12-06 19:17:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:54,711 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1487 transitions. [2021-12-06 19:17:54,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1487 transitions. [2021-12-06 19:17:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:17:54,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:54,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:54,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-12-06 19:17:54,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:54,915 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:54,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:54,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1309709834, now seen corresponding path program 1 times [2021-12-06 19:17:54,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:54,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620160677] [2021-12-06 19:17:54,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:54,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:54,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:54,918 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:54,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-12-06 19:17:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:55,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:55,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:55,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:55,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:55,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620160677] [2021-12-06 19:17:55,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620160677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:55,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:55,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:55,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154544222] [2021-12-06 19:17:55,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:55,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:55,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:55,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:55,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:55,261 INFO L87 Difference]: Start difference. First operand 1041 states and 1487 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:55,425 INFO L93 Difference]: Finished difference Result 1110 states and 1567 transitions. [2021-12-06 19:17:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-06 19:17:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:55,428 INFO L225 Difference]: With dead ends: 1110 [2021-12-06 19:17:55,428 INFO L226 Difference]: Without dead ends: 1098 [2021-12-06 19:17:55,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:55,429 INFO L933 BasicCegarLoop]: 613 mSDtfsCounter, 17 mSDsluCounter, 4725 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5338 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:55,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5338 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-12-06 19:17:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2021-12-06 19:17:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (191), 110 states have call predecessors, (191), 117 states have call successors, (191) [2021-12-06 19:17:55,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1518 transitions. [2021-12-06 19:17:55,446 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1518 transitions. Word has length 46 [2021-12-06 19:17:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:55,446 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1518 transitions. [2021-12-06 19:17:55,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1518 transitions. [2021-12-06 19:17:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:55,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:55,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:55,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:55,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:55,649 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:55,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1991597085, now seen corresponding path program 1 times [2021-12-06 19:17:55,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:55,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198060223] [2021-12-06 19:17:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:55,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:55,654 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:55,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-12-06 19:17:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:55,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:55,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:55,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:55,890 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:55,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198060223] [2021-12-06 19:17:55,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198060223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:55,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:55,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:55,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129051083] [2021-12-06 19:17:55,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:55,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:55,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:55,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:55,891 INFO L87 Difference]: Start difference. First operand 1062 states and 1518 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:56,037 INFO L93 Difference]: Finished difference Result 1110 states and 1566 transitions. [2021-12-06 19:17:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:56,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2021-12-06 19:17:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:56,039 INFO L225 Difference]: With dead ends: 1110 [2021-12-06 19:17:56,039 INFO L226 Difference]: Without dead ends: 1098 [2021-12-06 19:17:56,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:56,039 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 21 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:56,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 4800 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-12-06 19:17:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2021-12-06 19:17:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2021-12-06 19:17:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1517 transitions. [2021-12-06 19:17:56,053 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1517 transitions. Word has length 45 [2021-12-06 19:17:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:56,053 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1517 transitions. [2021-12-06 19:17:56,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1517 transitions. [2021-12-06 19:17:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:56,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:56,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:56,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-12-06 19:17:56,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:56,256 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:56,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2021-12-06 19:17:56,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:56,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132179234] [2021-12-06 19:17:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:56,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:56,261 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:56,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-12-06 19:17:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:56,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:56,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:56,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:56,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132179234] [2021-12-06 19:17:56,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132179234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:56,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:56,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:56,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456440007] [2021-12-06 19:17:56,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:56,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:56,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:56,381 INFO L87 Difference]: Start difference. First operand 1062 states and 1517 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:56,387 INFO L93 Difference]: Finished difference Result 1078 states and 1533 transitions. [2021-12-06 19:17:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:56,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 19:17:56,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:56,389 INFO L225 Difference]: With dead ends: 1078 [2021-12-06 19:17:56,389 INFO L226 Difference]: Without dead ends: 1078 [2021-12-06 19:17:56,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:56,390 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 19 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:56,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1211 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:56,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2021-12-06 19:17:56,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1062. [2021-12-06 19:17:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3686006825938566) internal successors, (1203), 910 states have internal predecessors, (1203), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2021-12-06 19:17:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1516 transitions. [2021-12-06 19:17:56,408 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1516 transitions. Word has length 45 [2021-12-06 19:17:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:56,408 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1516 transitions. [2021-12-06 19:17:56,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1516 transitions. [2021-12-06 19:17:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:56,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:56,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:56,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2021-12-06 19:17:56,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:56,615 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:56,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1664897996, now seen corresponding path program 1 times [2021-12-06 19:17:56,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:56,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236987006] [2021-12-06 19:17:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:56,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:56,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:56,616 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:56,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-12-06 19:17:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:56,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:56,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:56,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:56,733 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:56,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236987006] [2021-12-06 19:17:56,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236987006] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:56,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:56,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:56,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451088638] [2021-12-06 19:17:56,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:56,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:56,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:56,734 INFO L87 Difference]: Start difference. First operand 1062 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:56,820 INFO L93 Difference]: Finished difference Result 1086 states and 1545 transitions. [2021-12-06 19:17:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:56,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 19:17:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:56,822 INFO L225 Difference]: With dead ends: 1086 [2021-12-06 19:17:56,822 INFO L226 Difference]: Without dead ends: 1054 [2021-12-06 19:17:56,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:56,823 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 76 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:56,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 3521 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:56,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2021-12-06 19:17:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2021-12-06 19:17:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3642611683848798) internal successors, (1191), 904 states have internal predecessors, (1191), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2021-12-06 19:17:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1500 transitions. [2021-12-06 19:17:56,837 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1500 transitions. Word has length 45 [2021-12-06 19:17:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:56,837 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1500 transitions. [2021-12-06 19:17:56,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1500 transitions. [2021-12-06 19:17:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:56,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:56,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:56,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:57,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,039 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:57,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1130031656, now seen corresponding path program 1 times [2021-12-06 19:17:57,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:57,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332236938] [2021-12-06 19:17:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:57,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:57,041 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:57,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-12-06 19:17:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:57,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:17:57,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:57,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:57,150 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:57,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332236938] [2021-12-06 19:17:57,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332236938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:57,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:57,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:17:57,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822751568] [2021-12-06 19:17:57,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:57,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:17:57,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:17:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:57,151 INFO L87 Difference]: Start difference. First operand 1054 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:57,157 INFO L93 Difference]: Finished difference Result 1070 states and 1516 transitions. [2021-12-06 19:17:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:17:57,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 19:17:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:57,159 INFO L225 Difference]: With dead ends: 1070 [2021-12-06 19:17:57,159 INFO L226 Difference]: Without dead ends: 1070 [2021-12-06 19:17:57,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:17:57,160 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 19 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:57,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2021-12-06 19:17:57,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1054. [2021-12-06 19:17:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3631156930126003) internal successors, (1190), 904 states have internal predecessors, (1190), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2021-12-06 19:17:57,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1499 transitions. [2021-12-06 19:17:57,175 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1499 transitions. Word has length 45 [2021-12-06 19:17:57,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:57,175 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1499 transitions. [2021-12-06 19:17:57,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:57,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1499 transitions. [2021-12-06 19:17:57,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 19:17:57,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:57,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:57,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2021-12-06 19:17:57,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,378 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash 996018150, now seen corresponding path program 1 times [2021-12-06 19:17:57,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:57,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017083980] [2021-12-06 19:17:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:57,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:57,379 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:57,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-12-06 19:17:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:57,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:17:57,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:57,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:57,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:57,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017083980] [2021-12-06 19:17:57,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017083980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:57,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:57,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:17:57,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070274789] [2021-12-06 19:17:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:57,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:17:57,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:17:57,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:57,510 INFO L87 Difference]: Start difference. First operand 1054 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:57,590 INFO L93 Difference]: Finished difference Result 1069 states and 1514 transitions. [2021-12-06 19:17:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 19:17:57,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:57,592 INFO L225 Difference]: With dead ends: 1069 [2021-12-06 19:17:57,593 INFO L226 Difference]: Without dead ends: 1046 [2021-12-06 19:17:57,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:17:57,593 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 64 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:57,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 3414 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-12-06 19:17:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2021-12-06 19:17:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 867 states have (on average 1.3598615916955017) internal successors, (1179), 898 states have internal predecessors, (1179), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2021-12-06 19:17:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1484 transitions. [2021-12-06 19:17:57,607 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1484 transitions. Word has length 45 [2021-12-06 19:17:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:57,607 INFO L470 AbstractCegarLoop]: Abstraction has 1046 states and 1484 transitions. [2021-12-06 19:17:57,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:17:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1484 transitions. [2021-12-06 19:17:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:17:57,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:57,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:57,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-12-06 19:17:57,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,810 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:57,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash -688570704, now seen corresponding path program 1 times [2021-12-06 19:17:57,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:57,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097534908] [2021-12-06 19:17:57,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:57,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:57,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:57,811 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:57,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-12-06 19:17:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:57,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:17:57,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:57,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:57,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:57,931 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:57,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097534908] [2021-12-06 19:17:57,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097534908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:57,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:57,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:17:57,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459558166] [2021-12-06 19:17:57,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:57,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:17:57,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:57,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:17:57,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:17:57,932 INFO L87 Difference]: Start difference. First operand 1046 states and 1484 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:57,951 INFO L93 Difference]: Finished difference Result 1038 states and 1468 transitions. [2021-12-06 19:17:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:17:57,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2021-12-06 19:17:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:57,953 INFO L225 Difference]: With dead ends: 1038 [2021-12-06 19:17:57,953 INFO L226 Difference]: Without dead ends: 1038 [2021-12-06 19:17:57,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:17:57,954 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 34 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:57,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 2949 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:17:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2021-12-06 19:17:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1032. [2021-12-06 19:17:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 853 states have (on average 1.3563892145369285) internal successors, (1157), 884 states have internal predecessors, (1157), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2021-12-06 19:17:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1462 transitions. [2021-12-06 19:17:57,976 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1462 transitions. Word has length 49 [2021-12-06 19:17:57,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:57,976 INFO L470 AbstractCegarLoop]: Abstraction has 1032 states and 1462 transitions. [2021-12-06 19:17:57,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:17:57,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1462 transitions. [2021-12-06 19:17:57,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:57,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:57,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:57,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2021-12-06 19:17:58,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:58,180 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1799473543, now seen corresponding path program 1 times [2021-12-06 19:17:58,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:58,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457771579] [2021-12-06 19:17:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:58,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:58,185 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:58,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-12-06 19:17:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:58,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:58,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:58,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:58,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:58,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457771579] [2021-12-06 19:17:58,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457771579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:58,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:58,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:58,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706772422] [2021-12-06 19:17:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:58,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:58,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:58,568 INFO L87 Difference]: Start difference. First operand 1032 states and 1462 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:58,730 INFO L93 Difference]: Finished difference Result 1077 states and 1503 transitions. [2021-12-06 19:17:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2021-12-06 19:17:58,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:58,732 INFO L225 Difference]: With dead ends: 1077 [2021-12-06 19:17:58,732 INFO L226 Difference]: Without dead ends: 1064 [2021-12-06 19:17:58,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:58,733 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 17 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5104 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:58,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5104 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2021-12-06 19:17:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1018. [2021-12-06 19:17:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 840 states have (on average 1.35) internal successors, (1134), 871 states have internal predecessors, (1134), 118 states have call successors, (118), 41 states have call predecessors, (118), 59 states have return successors, (185), 105 states have call predecessors, (185), 112 states have call successors, (185) [2021-12-06 19:17:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1437 transitions. [2021-12-06 19:17:58,747 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1437 transitions. Word has length 47 [2021-12-06 19:17:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:58,747 INFO L470 AbstractCegarLoop]: Abstraction has 1018 states and 1437 transitions. [2021-12-06 19:17:58,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1437 transitions. [2021-12-06 19:17:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 19:17:58,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:58,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:58,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-12-06 19:17:58,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:58,950 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash -487130130, now seen corresponding path program 1 times [2021-12-06 19:17:58,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127957646] [2021-12-06 19:17:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:58,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:58,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:58,951 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:58,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-12-06 19:17:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:59,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:59,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:59,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:59,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:59,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127957646] [2021-12-06 19:17:59,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127957646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:59,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:59,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:59,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94573988] [2021-12-06 19:17:59,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:59,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:59,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:59,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:59,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:59,129 INFO L87 Difference]: Start difference. First operand 1018 states and 1437 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:59,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:59,290 INFO L93 Difference]: Finished difference Result 1074 states and 1497 transitions. [2021-12-06 19:17:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:59,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-06 19:17:59,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:59,292 INFO L225 Difference]: With dead ends: 1074 [2021-12-06 19:17:59,292 INFO L226 Difference]: Without dead ends: 1061 [2021-12-06 19:17:59,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:17:59,293 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 17 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5076 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:59,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5076 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2021-12-06 19:17:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1006. [2021-12-06 19:17:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 831 states have (on average 1.3513838748495788) internal successors, (1123), 861 states have internal predecessors, (1123), 117 states have call successors, (117), 41 states have call predecessors, (117), 57 states have return successors, (177), 103 states have call predecessors, (177), 111 states have call successors, (177) [2021-12-06 19:17:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1417 transitions. [2021-12-06 19:17:59,306 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1417 transitions. Word has length 46 [2021-12-06 19:17:59,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:59,306 INFO L470 AbstractCegarLoop]: Abstraction has 1006 states and 1417 transitions. [2021-12-06 19:17:59,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:17:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1417 transitions. [2021-12-06 19:17:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:17:59,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:59,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:59,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-12-06 19:17:59,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:17:59,510 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:17:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:17:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2021-12-06 19:17:59,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:17:59,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843503223] [2021-12-06 19:17:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:17:59,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:17:59,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:17:59,514 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:17:59,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-12-06 19:17:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:17:59,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:17:59,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:17:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:17:59,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:17:59,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:17:59,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843503223] [2021-12-06 19:17:59,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843503223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:17:59,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:17:59,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:17:59,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634956255] [2021-12-06 19:17:59,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:17:59,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:17:59,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:17:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:17:59,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:17:59,700 INFO L87 Difference]: Start difference. First operand 1006 states and 1417 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:17:59,869 INFO L93 Difference]: Finished difference Result 1021 states and 1432 transitions. [2021-12-06 19:17:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:17:59,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2021-12-06 19:17:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:17:59,871 INFO L225 Difference]: With dead ends: 1021 [2021-12-06 19:17:59,871 INFO L226 Difference]: Without dead ends: 1004 [2021-12-06 19:17:59,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:17:59,872 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 62 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:17:59,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4892 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:17:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-12-06 19:17:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2021-12-06 19:17:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.3493975903614457) internal successors, (1120), 860 states have internal predecessors, (1120), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2021-12-06 19:17:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1412 transitions. [2021-12-06 19:17:59,884 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1412 transitions. Word has length 48 [2021-12-06 19:17:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:17:59,884 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1412 transitions. [2021-12-06 19:17:59,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:17:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1412 transitions. [2021-12-06 19:17:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:17:59,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:17:59,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:17:59,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-12-06 19:18:00,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:00,087 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1904148279, now seen corresponding path program 1 times [2021-12-06 19:18:00,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:00,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573982943] [2021-12-06 19:18:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:00,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:00,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:00,092 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:00,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-12-06 19:18:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:00,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:00,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:00,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:00,247 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:00,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573982943] [2021-12-06 19:18:00,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573982943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:00,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:00,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:00,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561618656] [2021-12-06 19:18:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:00,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:00,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:00,248 INFO L87 Difference]: Start difference. First operand 1004 states and 1412 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:00,403 INFO L93 Difference]: Finished difference Result 1021 states and 1430 transitions. [2021-12-06 19:18:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:00,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-06 19:18:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:00,405 INFO L225 Difference]: With dead ends: 1021 [2021-12-06 19:18:00,405 INFO L226 Difference]: Without dead ends: 1004 [2021-12-06 19:18:00,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:00,405 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 62 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:00,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4870 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:00,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-12-06 19:18:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2021-12-06 19:18:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.344578313253012) internal successors, (1116), 860 states have internal predecessors, (1116), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2021-12-06 19:18:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1408 transitions. [2021-12-06 19:18:00,418 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1408 transitions. Word has length 47 [2021-12-06 19:18:00,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:00,418 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1408 transitions. [2021-12-06 19:18:00,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1408 transitions. [2021-12-06 19:18:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:18:00,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:00,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:00,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2021-12-06 19:18:00,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:00,621 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:00,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:00,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2046804371, now seen corresponding path program 1 times [2021-12-06 19:18:00,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:00,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141436849] [2021-12-06 19:18:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:00,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:00,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:00,626 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:00,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-12-06 19:18:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:00,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:00,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:00,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:00,944 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:00,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141436849] [2021-12-06 19:18:00,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141436849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:00,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:00,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:00,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996970062] [2021-12-06 19:18:00,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:00,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:00,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:00,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:00,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:00,945 INFO L87 Difference]: Start difference. First operand 1004 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:00,960 INFO L93 Difference]: Finished difference Result 1033 states and 1448 transitions. [2021-12-06 19:18:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:00,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-06 19:18:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:00,962 INFO L225 Difference]: With dead ends: 1033 [2021-12-06 19:18:00,962 INFO L226 Difference]: Without dead ends: 1033 [2021-12-06 19:18:00,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:00,963 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 39 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:00,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 2267 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-12-06 19:18:00,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1012. [2021-12-06 19:18:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 836 states have (on average 1.3421052631578947) internal successors, (1122), 866 states have internal predecessors, (1122), 116 states have call successors, (116), 41 states have call predecessors, (116), 59 states have return successors, (186), 104 states have call predecessors, (186), 110 states have call successors, (186) [2021-12-06 19:18:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1424 transitions. [2021-12-06 19:18:00,979 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1424 transitions. Word has length 47 [2021-12-06 19:18:00,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:00,979 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1424 transitions. [2021-12-06 19:18:00,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1424 transitions. [2021-12-06 19:18:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 19:18:00,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:00,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:00,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2021-12-06 19:18:01,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:01,182 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:01,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash 791864886, now seen corresponding path program 1 times [2021-12-06 19:18:01,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:01,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663655167] [2021-12-06 19:18:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:01,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:01,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:01,183 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:01,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-12-06 19:18:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:18:01,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:01,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:01,286 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:01,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663655167] [2021-12-06 19:18:01,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663655167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:01,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:01,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:18:01,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968934390] [2021-12-06 19:18:01,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:01,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:18:01,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:18:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:01,287 INFO L87 Difference]: Start difference. First operand 1012 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:01,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:01,291 INFO L93 Difference]: Finished difference Result 964 states and 1315 transitions. [2021-12-06 19:18:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:18:01,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-06 19:18:01,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:01,293 INFO L225 Difference]: With dead ends: 964 [2021-12-06 19:18:01,293 INFO L226 Difference]: Without dead ends: 962 [2021-12-06 19:18:01,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:01,294 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 3 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:01,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-12-06 19:18:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 865. [2021-12-06 19:18:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 726 states have (on average 1.334710743801653) internal successors, (969), 743 states have internal predecessors, (969), 87 states have call successors, (87), 38 states have call predecessors, (87), 51 states have return successors, (115), 83 states have call predecessors, (115), 81 states have call successors, (115) [2021-12-06 19:18:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1171 transitions. [2021-12-06 19:18:01,304 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1171 transitions. Word has length 47 [2021-12-06 19:18:01,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:01,304 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1171 transitions. [2021-12-06 19:18:01,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1171 transitions. [2021-12-06 19:18:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 19:18:01,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:01,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:01,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2021-12-06 19:18:01,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:01,507 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:01,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:01,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2021-12-06 19:18:01,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:01,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431034803] [2021-12-06 19:18:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:01,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:01,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:01,512 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:01,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-12-06 19:18:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:01,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:01,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:01,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:01,679 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431034803] [2021-12-06 19:18:01,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431034803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:01,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:01,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:01,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011798252] [2021-12-06 19:18:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:01,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:01,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:01,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:01,680 INFO L87 Difference]: Start difference. First operand 865 states and 1171 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:01,826 INFO L93 Difference]: Finished difference Result 896 states and 1203 transitions. [2021-12-06 19:18:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2021-12-06 19:18:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:01,827 INFO L225 Difference]: With dead ends: 896 [2021-12-06 19:18:01,828 INFO L226 Difference]: Without dead ends: 879 [2021-12-06 19:18:01,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:01,828 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 64 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4864 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:01,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 4864 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-12-06 19:18:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 863. [2021-12-06 19:18:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 725 states have (on average 1.333793103448276) internal successors, (967), 742 states have internal predecessors, (967), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 82 states have call predecessors, (114), 80 states have call successors, (114) [2021-12-06 19:18:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1167 transitions. [2021-12-06 19:18:01,837 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1167 transitions. Word has length 52 [2021-12-06 19:18:01,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:01,837 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1167 transitions. [2021-12-06 19:18:01,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1167 transitions. [2021-12-06 19:18:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:18:01,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:01,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:01,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2021-12-06 19:18:02,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:02,040 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:02,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:02,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1918382277, now seen corresponding path program 1 times [2021-12-06 19:18:02,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524206897] [2021-12-06 19:18:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:02,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:02,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:02,044 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:02,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-12-06 19:18:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:02,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:02,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:02,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:02,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:02,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524206897] [2021-12-06 19:18:02,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524206897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:02,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:02,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:02,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232542523] [2021-12-06 19:18:02,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:02,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:02,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:02,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:02,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:02,217 INFO L87 Difference]: Start difference. First operand 863 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:02,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:02,235 INFO L93 Difference]: Finished difference Result 883 states and 1189 transitions. [2021-12-06 19:18:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:02,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2021-12-06 19:18:02,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:02,237 INFO L225 Difference]: With dead ends: 883 [2021-12-06 19:18:02,237 INFO L226 Difference]: Without dead ends: 883 [2021-12-06 19:18:02,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:02,238 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 28 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:02,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 2165 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:02,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-12-06 19:18:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 865. [2021-12-06 19:18:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 727 states have (on average 1.3328748280605227) internal successors, (969), 743 states have internal predecessors, (969), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 83 states have call predecessors, (114), 80 states have call successors, (114) [2021-12-06 19:18:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1169 transitions. [2021-12-06 19:18:02,246 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1169 transitions. Word has length 49 [2021-12-06 19:18:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:02,246 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1169 transitions. [2021-12-06 19:18:02,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1169 transitions. [2021-12-06 19:18:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:18:02,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:02,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:02,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-12-06 19:18:02,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:02,448 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:02,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1443534431, now seen corresponding path program 1 times [2021-12-06 19:18:02,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:02,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7404593] [2021-12-06 19:18:02,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:02,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:02,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:02,449 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:02,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-12-06 19:18:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:02,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:02,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:02,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:02,638 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:02,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7404593] [2021-12-06 19:18:02,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7404593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:02,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:02,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:18:02,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181816978] [2021-12-06 19:18:02,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:02,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:18:02,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:18:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:18:02,639 INFO L87 Difference]: Start difference. First operand 865 states and 1169 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:02,816 INFO L93 Difference]: Finished difference Result 933 states and 1246 transitions. [2021-12-06 19:18:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:18:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2021-12-06 19:18:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:02,817 INFO L225 Difference]: With dead ends: 933 [2021-12-06 19:18:02,817 INFO L226 Difference]: Without dead ends: 920 [2021-12-06 19:18:02,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:18:02,818 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 33 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4774 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:02,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 4774 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2021-12-06 19:18:02,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 874. [2021-12-06 19:18:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 734 states have (on average 1.3297002724795641) internal successors, (976), 751 states have internal predecessors, (976), 86 states have call successors, (86), 38 states have call predecessors, (86), 53 states have return successors, (120), 84 states have call predecessors, (120), 80 states have call successors, (120) [2021-12-06 19:18:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1182 transitions. [2021-12-06 19:18:02,827 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1182 transitions. Word has length 48 [2021-12-06 19:18:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:02,827 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 1182 transitions. [2021-12-06 19:18:02,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1182 transitions. [2021-12-06 19:18:02,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:18:02,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:02,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:02,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:03,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:03,029 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:03,029 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2021-12-06 19:18:03,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:03,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059628599] [2021-12-06 19:18:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:03,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:03,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:03,030 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:03,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-12-06 19:18:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:03,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:03,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:03,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:03,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:03,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059628599] [2021-12-06 19:18:03,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059628599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:03,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:03,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:03,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220765213] [2021-12-06 19:18:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:03,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:03,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:03,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:03,190 INFO L87 Difference]: Start difference. First operand 874 states and 1182 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:03,326 INFO L93 Difference]: Finished difference Result 889 states and 1197 transitions. [2021-12-06 19:18:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2021-12-06 19:18:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:03,328 INFO L225 Difference]: With dead ends: 889 [2021-12-06 19:18:03,328 INFO L226 Difference]: Without dead ends: 872 [2021-12-06 19:18:03,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:03,329 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 62 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:03,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4713 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-12-06 19:18:03,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 872. [2021-12-06 19:18:03,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 733 states have (on average 1.3287858117326057) internal successors, (974), 750 states have internal predecessors, (974), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2021-12-06 19:18:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1178 transitions. [2021-12-06 19:18:03,343 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1178 transitions. Word has length 51 [2021-12-06 19:18:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:03,343 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1178 transitions. [2021-12-06 19:18:03,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1178 transitions. [2021-12-06 19:18:03,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:18:03,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:03,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:03,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2021-12-06 19:18:03,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:03,546 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:03,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1448836095, now seen corresponding path program 1 times [2021-12-06 19:18:03,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:03,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330321404] [2021-12-06 19:18:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:03,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:03,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:03,548 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:03,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-12-06 19:18:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:03,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:03,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:03,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:03,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:03,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330321404] [2021-12-06 19:18:03,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330321404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:03,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:03,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:03,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566978165] [2021-12-06 19:18:03,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:03,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:03,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:03,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:03,745 INFO L87 Difference]: Start difference. First operand 872 states and 1178 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:03,881 INFO L93 Difference]: Finished difference Result 889 states and 1196 transitions. [2021-12-06 19:18:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:03,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2021-12-06 19:18:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:03,883 INFO L225 Difference]: With dead ends: 889 [2021-12-06 19:18:03,883 INFO L226 Difference]: Without dead ends: 871 [2021-12-06 19:18:03,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:03,883 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 62 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:03,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4628 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2021-12-06 19:18:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2021-12-06 19:18:03,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 732 states have (on average 1.3210382513661203) internal successors, (967), 749 states have internal predecessors, (967), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2021-12-06 19:18:03,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1171 transitions. [2021-12-06 19:18:03,894 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1171 transitions. Word has length 49 [2021-12-06 19:18:03,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:03,895 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 1171 transitions. [2021-12-06 19:18:03,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:03,895 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1171 transitions. [2021-12-06 19:18:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:18:03,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:03,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:03,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2021-12-06 19:18:04,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,097 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:04,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1422191575, now seen corresponding path program 1 times [2021-12-06 19:18:04,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:04,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612476565] [2021-12-06 19:18:04,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:04,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:04,099 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:04,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-12-06 19:18:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:04,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:18:04,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:04,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:04,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:04,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612476565] [2021-12-06 19:18:04,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612476565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:04,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:04,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:18:04,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730470971] [2021-12-06 19:18:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:04,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:18:04,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:18:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:04,197 INFO L87 Difference]: Start difference. First operand 871 states and 1171 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:18:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:04,232 INFO L93 Difference]: Finished difference Result 892 states and 1194 transitions. [2021-12-06 19:18:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:04,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 19:18:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:04,234 INFO L225 Difference]: With dead ends: 892 [2021-12-06 19:18:04,234 INFO L226 Difference]: Without dead ends: 892 [2021-12-06 19:18:04,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:04,235 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 39 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:04,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1526 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:04,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-12-06 19:18:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 873. [2021-12-06 19:18:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 734 states have (on average 1.3201634877384196) internal successors, (969), 751 states have internal predecessors, (969), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2021-12-06 19:18:04,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1173 transitions. [2021-12-06 19:18:04,248 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1173 transitions. Word has length 48 [2021-12-06 19:18:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:04,248 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1173 transitions. [2021-12-06 19:18:04,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:18:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1173 transitions. [2021-12-06 19:18:04,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 19:18:04,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:04,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:04,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2021-12-06 19:18:04,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,451 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:04,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:04,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1288178069, now seen corresponding path program 1 times [2021-12-06 19:18:04,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:04,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972865161] [2021-12-06 19:18:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:04,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:04,452 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:04,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-12-06 19:18:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:04,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:18:04,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:04,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:04,579 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:04,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972865161] [2021-12-06 19:18:04,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972865161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:04,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:04,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:18:04,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026548254] [2021-12-06 19:18:04,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:04,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:18:04,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:04,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:18:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:04,580 INFO L87 Difference]: Start difference. First operand 873 states and 1173 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:18:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:04,653 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2021-12-06 19:18:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:18:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 19:18:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:04,655 INFO L225 Difference]: With dead ends: 891 [2021-12-06 19:18:04,655 INFO L226 Difference]: Without dead ends: 870 [2021-12-06 19:18:04,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:18:04,656 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 60 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:04,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3064 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2021-12-06 19:18:04,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2021-12-06 19:18:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2021-12-06 19:18:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1164 transitions. [2021-12-06 19:18:04,665 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1164 transitions. Word has length 48 [2021-12-06 19:18:04,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:04,665 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1164 transitions. [2021-12-06 19:18:04,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:18:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1164 transitions. [2021-12-06 19:18:04,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:04,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:04,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:04,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (59)] Ended with exit code 0 [2021-12-06 19:18:04,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,866 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:04,867 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2021-12-06 19:18:04,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:04,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166692016] [2021-12-06 19:18:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:04,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:04,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:04,868 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:04,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-12-06 19:18:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:04,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:04,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:05,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:05,080 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:05,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166692016] [2021-12-06 19:18:05,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166692016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:05,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:05,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:05,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554668668] [2021-12-06 19:18:05,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:05,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:05,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:05,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:05,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:05,081 INFO L87 Difference]: Start difference. First operand 870 states and 1164 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:05,260 INFO L93 Difference]: Finished difference Result 909 states and 1203 transitions. [2021-12-06 19:18:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-12-06 19:18:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:05,262 INFO L225 Difference]: With dead ends: 909 [2021-12-06 19:18:05,262 INFO L226 Difference]: Without dead ends: 895 [2021-12-06 19:18:05,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:05,262 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 42 mSDsluCounter, 5098 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5625 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:05,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 5625 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2021-12-06 19:18:05,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 870. [2021-12-06 19:18:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (118), 83 states have call predecessors, (118), 79 states have call successors, (118) [2021-12-06 19:18:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1163 transitions. [2021-12-06 19:18:05,271 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1163 transitions. Word has length 57 [2021-12-06 19:18:05,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:05,271 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1163 transitions. [2021-12-06 19:18:05,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:05,271 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1163 transitions. [2021-12-06 19:18:05,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:18:05,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:05,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:05,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2021-12-06 19:18:05,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:05,473 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1327042800, now seen corresponding path program 1 times [2021-12-06 19:18:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:05,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974878733] [2021-12-06 19:18:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:05,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:05,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:05,475 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:05,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-12-06 19:18:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:05,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:05,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:05,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:05,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:05,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974878733] [2021-12-06 19:18:05,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974878733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:05,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:05,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:18:05,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515071364] [2021-12-06 19:18:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:05,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:18:05,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:05,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:18:05,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:18:05,666 INFO L87 Difference]: Start difference. First operand 870 states and 1163 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:05,829 INFO L93 Difference]: Finished difference Result 928 states and 1225 transitions. [2021-12-06 19:18:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:18:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2021-12-06 19:18:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:05,831 INFO L225 Difference]: With dead ends: 928 [2021-12-06 19:18:05,831 INFO L226 Difference]: Without dead ends: 913 [2021-12-06 19:18:05,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:18:05,831 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 33 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:05,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 4675 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-06 19:18:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2021-12-06 19:18:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2021-12-06 19:18:05,840 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 49 [2021-12-06 19:18:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:05,840 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2021-12-06 19:18:05,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2021-12-06 19:18:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 19:18:05,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:05,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:05,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2021-12-06 19:18:06,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:06,042 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:06,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1096222030, now seen corresponding path program 1 times [2021-12-06 19:18:06,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:06,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350682274] [2021-12-06 19:18:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:06,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:06,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:06,047 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:06,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-12-06 19:18:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:06,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:06,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:06,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:06,248 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:06,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350682274] [2021-12-06 19:18:06,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350682274] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:06,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:06,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:06,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037308139] [2021-12-06 19:18:06,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:06,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:06,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:06,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:06,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:06,248 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:06,425 INFO L93 Difference]: Finished difference Result 927 states and 1221 transitions. [2021-12-06 19:18:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:06,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-12-06 19:18:06,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:06,427 INFO L225 Difference]: With dead ends: 927 [2021-12-06 19:18:06,427 INFO L226 Difference]: Without dead ends: 913 [2021-12-06 19:18:06,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:06,427 INFO L933 BasicCegarLoop]: 535 mSDtfsCounter, 46 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5150 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:06,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 5150 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-06 19:18:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2021-12-06 19:18:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (116), 82 states have call predecessors, (116), 78 states have call successors, (116) [2021-12-06 19:18:06,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1156 transitions. [2021-12-06 19:18:06,436 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1156 transitions. Word has length 50 [2021-12-06 19:18:06,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:06,436 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1156 transitions. [2021-12-06 19:18:06,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1156 transitions. [2021-12-06 19:18:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:18:06,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:06,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:06,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2021-12-06 19:18:06,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:06,638 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:06,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:06,638 INFO L85 PathProgramCache]: Analyzing trace with hash -692563454, now seen corresponding path program 1 times [2021-12-06 19:18:06,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305111966] [2021-12-06 19:18:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:06,639 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:06,639 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:06,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-12-06 19:18:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:06,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:06,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:07,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:07,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:07,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305111966] [2021-12-06 19:18:07,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305111966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:07,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:07,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:07,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594153043] [2021-12-06 19:18:07,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:07,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:07,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:07,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:07,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:07,004 INFO L87 Difference]: Start difference. First operand 867 states and 1156 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:07,172 INFO L93 Difference]: Finished difference Result 927 states and 1220 transitions. [2021-12-06 19:18:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:07,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2021-12-06 19:18:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:07,174 INFO L225 Difference]: With dead ends: 927 [2021-12-06 19:18:07,174 INFO L226 Difference]: Without dead ends: 913 [2021-12-06 19:18:07,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:07,174 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 42 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:07,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 5631 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-06 19:18:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2021-12-06 19:18:07,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (115), 82 states have call predecessors, (115), 78 states have call successors, (115) [2021-12-06 19:18:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1155 transitions. [2021-12-06 19:18:07,183 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1155 transitions. Word has length 49 [2021-12-06 19:18:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:07,183 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1155 transitions. [2021-12-06 19:18:07,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:07,184 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1155 transitions. [2021-12-06 19:18:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 19:18:07,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:07,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:07,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2021-12-06 19:18:07,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:07,385 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash 110672091, now seen corresponding path program 1 times [2021-12-06 19:18:07,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:07,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402591966] [2021-12-06 19:18:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:07,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:07,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:07,386 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:07,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-12-06 19:18:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:07,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:07,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:07,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:07,595 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:07,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402591966] [2021-12-06 19:18:07,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402591966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:07,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:07,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:07,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341188754] [2021-12-06 19:18:07,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:07,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:07,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:07,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:07,596 INFO L87 Difference]: Start difference. First operand 867 states and 1155 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:07,754 INFO L93 Difference]: Finished difference Result 927 states and 1219 transitions. [2021-12-06 19:18:07,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:07,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2021-12-06 19:18:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:07,756 INFO L225 Difference]: With dead ends: 927 [2021-12-06 19:18:07,756 INFO L226 Difference]: Without dead ends: 913 [2021-12-06 19:18:07,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:07,757 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 46 mSDsluCounter, 4593 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5124 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:07,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 5124 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:07,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-06 19:18:07,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2021-12-06 19:18:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (114), 82 states have call predecessors, (114), 78 states have call successors, (114) [2021-12-06 19:18:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1154 transitions. [2021-12-06 19:18:07,768 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1154 transitions. Word has length 59 [2021-12-06 19:18:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:07,768 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1154 transitions. [2021-12-06 19:18:07,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:07,769 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1154 transitions. [2021-12-06 19:18:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:07,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:07,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:07,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2021-12-06 19:18:07,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:07,971 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:07,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1369472507, now seen corresponding path program 1 times [2021-12-06 19:18:07,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:07,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194896777] [2021-12-06 19:18:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:07,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:07,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:07,977 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:07,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-12-06 19:18:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:08,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:08,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:08,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:08,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:08,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194896777] [2021-12-06 19:18:08,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194896777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:08,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:08,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:08,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919370889] [2021-12-06 19:18:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:08,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:08,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:08,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:08,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:08,212 INFO L87 Difference]: Start difference. First operand 867 states and 1154 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:08,384 INFO L93 Difference]: Finished difference Result 927 states and 1218 transitions. [2021-12-06 19:18:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-12-06 19:18:08,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:08,386 INFO L225 Difference]: With dead ends: 927 [2021-12-06 19:18:08,386 INFO L226 Difference]: Without dead ends: 913 [2021-12-06 19:18:08,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:08,387 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 42 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5654 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:08,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 5654 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-06 19:18:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2021-12-06 19:18:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2021-12-06 19:18:08,395 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 56 [2021-12-06 19:18:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:08,396 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2021-12-06 19:18:08,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2021-12-06 19:18:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 19:18:08,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:08,397 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:08,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (65)] Ended with exit code 0 [2021-12-06 19:18:08,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:08,598 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash 73346213, now seen corresponding path program 1 times [2021-12-06 19:18:08,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:08,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819124292] [2021-12-06 19:18:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:08,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:08,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:08,603 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:08,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2021-12-06 19:18:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:08,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:08,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:08,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:08,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:08,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819124292] [2021-12-06 19:18:08,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819124292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:08,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:08,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:08,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593447561] [2021-12-06 19:18:08,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:08,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:08,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:08,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:08,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:08,778 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:18:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:09,027 INFO L93 Difference]: Finished difference Result 858 states and 1138 transitions. [2021-12-06 19:18:09,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:09,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2021-12-06 19:18:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:09,029 INFO L225 Difference]: With dead ends: 858 [2021-12-06 19:18:09,029 INFO L226 Difference]: Without dead ends: 858 [2021-12-06 19:18:09,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:09,029 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 548 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:09,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1106 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:18:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-12-06 19:18:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-12-06 19:18:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.3060941828254848) internal successors, (943), 738 states have internal predecessors, (943), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1138 transitions. [2021-12-06 19:18:09,041 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1138 transitions. Word has length 66 [2021-12-06 19:18:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:09,041 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1138 transitions. [2021-12-06 19:18:09,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:18:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1138 transitions. [2021-12-06 19:18:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 19:18:09,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:09,042 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:09,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (66)] Ended with exit code 0 [2021-12-06 19:18:09,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:09,243 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1549681228, now seen corresponding path program 1 times [2021-12-06 19:18:09,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:09,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861011196] [2021-12-06 19:18:09,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:09,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:09,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:09,248 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:09,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-12-06 19:18:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:09,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:09,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:09,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:09,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861011196] [2021-12-06 19:18:09,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861011196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:09,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:09,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:18:09,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539497917] [2021-12-06 19:18:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:09,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:18:09,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:18:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:09,549 INFO L87 Difference]: Start difference. First operand 858 states and 1138 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:09,733 INFO L93 Difference]: Finished difference Result 858 states and 1130 transitions. [2021-12-06 19:18:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:09,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2021-12-06 19:18:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:09,735 INFO L225 Difference]: With dead ends: 858 [2021-12-06 19:18:09,735 INFO L226 Difference]: Without dead ends: 858 [2021-12-06 19:18:09,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:09,735 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 473 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:09,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 884 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:18:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-12-06 19:18:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-12-06 19:18:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.2950138504155124) internal successors, (935), 738 states have internal predecessors, (935), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1130 transitions. [2021-12-06 19:18:09,744 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1130 transitions. Word has length 67 [2021-12-06 19:18:09,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:09,744 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1130 transitions. [2021-12-06 19:18:09,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1130 transitions. [2021-12-06 19:18:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:18:09,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:09,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:09,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2021-12-06 19:18:09,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:09,945 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1303785248, now seen corresponding path program 1 times [2021-12-06 19:18:09,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:09,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675077532] [2021-12-06 19:18:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:09,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:09,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:09,947 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:09,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-12-06 19:18:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:10,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:10,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:10,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:10,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:10,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675077532] [2021-12-06 19:18:10,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675077532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:10,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:10,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:10,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986334824] [2021-12-06 19:18:10,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:10,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:10,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:10,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:10,055 INFO L87 Difference]: Start difference. First operand 858 states and 1130 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:10,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:10,072 INFO L93 Difference]: Finished difference Result 878 states and 1152 transitions. [2021-12-06 19:18:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2021-12-06 19:18:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:10,073 INFO L225 Difference]: With dead ends: 878 [2021-12-06 19:18:10,073 INFO L226 Difference]: Without dead ends: 878 [2021-12-06 19:18:10,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:10,074 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 33 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:10,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 2089 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2021-12-06 19:18:10,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 860. [2021-12-06 19:18:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 724 states have (on average 1.2941988950276244) internal successors, (937), 739 states have internal predecessors, (937), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1132 transitions. [2021-12-06 19:18:10,082 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1132 transitions. Word has length 51 [2021-12-06 19:18:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:10,082 INFO L470 AbstractCegarLoop]: Abstraction has 860 states and 1132 transitions. [2021-12-06 19:18:10,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1132 transitions. [2021-12-06 19:18:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 19:18:10,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:10,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:10,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:10,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:10,287 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:10,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2021-12-06 19:18:10,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:10,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758796323] [2021-12-06 19:18:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:10,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:10,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:10,292 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:10,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-12-06 19:18:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:10,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:10,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:10,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:10,607 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:10,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758796323] [2021-12-06 19:18:10,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758796323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:10,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:10,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:10,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644232602] [2021-12-06 19:18:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:10,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:10,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:10,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:10,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:10,608 INFO L87 Difference]: Start difference. First operand 860 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:10,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:10,660 INFO L93 Difference]: Finished difference Result 925 states and 1208 transitions. [2021-12-06 19:18:10,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:10,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2021-12-06 19:18:10,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:10,662 INFO L225 Difference]: With dead ends: 925 [2021-12-06 19:18:10,662 INFO L226 Difference]: Without dead ends: 925 [2021-12-06 19:18:10,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:10,662 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 140 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:10,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2011 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-12-06 19:18:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 866. [2021-12-06 19:18:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 729 states have (on average 1.2935528120713307) internal successors, (943), 744 states have internal predecessors, (943), 85 states have call successors, (85), 38 states have call predecessors, (85), 51 states have return successors, (112), 83 states have call predecessors, (112), 79 states have call successors, (112) [2021-12-06 19:18:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1140 transitions. [2021-12-06 19:18:10,671 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1140 transitions. Word has length 50 [2021-12-06 19:18:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:10,671 INFO L470 AbstractCegarLoop]: Abstraction has 866 states and 1140 transitions. [2021-12-06 19:18:10,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1140 transitions. [2021-12-06 19:18:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 19:18:10,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:10,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:10,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2021-12-06 19:18:10,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:10,873 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1170886567, now seen corresponding path program 1 times [2021-12-06 19:18:10,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:10,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842062504] [2021-12-06 19:18:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:10,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:10,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:10,877 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:10,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-12-06 19:18:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:11,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:11,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:11,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:11,140 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:11,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842062504] [2021-12-06 19:18:11,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842062504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:11,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:11,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:11,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378895749] [2021-12-06 19:18:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:11,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:11,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:11,141 INFO L87 Difference]: Start difference. First operand 866 states and 1140 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:11,327 INFO L93 Difference]: Finished difference Result 918 states and 1192 transitions. [2021-12-06 19:18:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:11,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-12-06 19:18:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:11,329 INFO L225 Difference]: With dead ends: 918 [2021-12-06 19:18:11,329 INFO L226 Difference]: Without dead ends: 901 [2021-12-06 19:18:11,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:11,329 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 42 mSDsluCounter, 4996 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:11,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 5514 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:11,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-12-06 19:18:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 861. [2021-12-06 19:18:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 725 states have (on average 1.2924137931034483) internal successors, (937), 740 states have internal predecessors, (937), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1132 transitions. [2021-12-06 19:18:11,338 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1132 transitions. Word has length 50 [2021-12-06 19:18:11,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:11,338 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1132 transitions. [2021-12-06 19:18:11,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1132 transitions. [2021-12-06 19:18:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:18:11,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:11,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:11,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2021-12-06 19:18:11,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:11,540 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:11,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2021-12-06 19:18:11,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:11,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786346462] [2021-12-06 19:18:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:11,543 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:11,545 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:11,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-12-06 19:18:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:11,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:11,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:11,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:11,720 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:11,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786346462] [2021-12-06 19:18:11,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786346462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:11,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:11,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:11,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108212586] [2021-12-06 19:18:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:11,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:11,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:11,721 INFO L87 Difference]: Start difference. First operand 861 states and 1132 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:11,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:11,759 INFO L93 Difference]: Finished difference Result 877 states and 1146 transitions. [2021-12-06 19:18:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-06 19:18:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:11,760 INFO L225 Difference]: With dead ends: 877 [2021-12-06 19:18:11,760 INFO L226 Difference]: Without dead ends: 877 [2021-12-06 19:18:11,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:11,761 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 41 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:11,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 2507 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-12-06 19:18:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 861. [2021-12-06 19:18:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 725 states have (on average 1.2882758620689656) internal successors, (934), 740 states have internal predecessors, (934), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2021-12-06 19:18:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1129 transitions. [2021-12-06 19:18:11,770 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1129 transitions. Word has length 51 [2021-12-06 19:18:11,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:11,771 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1129 transitions. [2021-12-06 19:18:11,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1129 transitions. [2021-12-06 19:18:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:18:11,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:11,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:11,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2021-12-06 19:18:11,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:11,973 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1141501660, now seen corresponding path program 1 times [2021-12-06 19:18:11,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:11,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432992712] [2021-12-06 19:18:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:11,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:11,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:11,977 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:11,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-12-06 19:18:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:12,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:12,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:12,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:12,172 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:12,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432992712] [2021-12-06 19:18:12,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432992712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:12,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:12,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:12,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458995890] [2021-12-06 19:18:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:12,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:12,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:12,173 INFO L87 Difference]: Start difference. First operand 861 states and 1129 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:12,261 INFO L93 Difference]: Finished difference Result 876 states and 1144 transitions. [2021-12-06 19:18:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:12,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-06 19:18:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:12,262 INFO L225 Difference]: With dead ends: 876 [2021-12-06 19:18:12,262 INFO L226 Difference]: Without dead ends: 857 [2021-12-06 19:18:12,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:12,263 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 62 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:12,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 3971 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-12-06 19:18:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 851. [2021-12-06 19:18:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.290097629009763) internal successors, (925), 732 states have internal predecessors, (925), 82 states have call successors, (82), 38 states have call predecessors, (82), 51 states have return successors, (109), 80 states have call predecessors, (109), 76 states have call successors, (109) [2021-12-06 19:18:12,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1116 transitions. [2021-12-06 19:18:12,270 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1116 transitions. Word has length 51 [2021-12-06 19:18:12,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:12,270 INFO L470 AbstractCegarLoop]: Abstraction has 851 states and 1116 transitions. [2021-12-06 19:18:12,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:12,271 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1116 transitions. [2021-12-06 19:18:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-06 19:18:12,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:12,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:12,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:12,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:12,473 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:12,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1224915852, now seen corresponding path program 1 times [2021-12-06 19:18:12,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:12,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51201607] [2021-12-06 19:18:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:12,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:12,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:12,478 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:12,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2021-12-06 19:18:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:12,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:12,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:12,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:12,704 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:12,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51201607] [2021-12-06 19:18:12,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51201607] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:12,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:12,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:12,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816392883] [2021-12-06 19:18:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:12,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:12,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:12,705 INFO L87 Difference]: Start difference. First operand 851 states and 1116 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:12,904 INFO L93 Difference]: Finished difference Result 904 states and 1169 transitions. [2021-12-06 19:18:12,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:12,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2021-12-06 19:18:12,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:12,905 INFO L225 Difference]: With dead ends: 904 [2021-12-06 19:18:12,905 INFO L226 Difference]: Without dead ends: 889 [2021-12-06 19:18:12,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:12,905 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 42 mSDsluCounter, 4934 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5450 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:12,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 5450 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-12-06 19:18:12,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 849. [2021-12-06 19:18:12,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 716 states have (on average 1.2877094972067038) internal successors, (922), 731 states have internal predecessors, (922), 81 states have call successors, (81), 38 states have call predecessors, (81), 51 states have return successors, (108), 79 states have call predecessors, (108), 75 states have call successors, (108) [2021-12-06 19:18:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1111 transitions. [2021-12-06 19:18:12,913 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1111 transitions. Word has length 60 [2021-12-06 19:18:12,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:12,913 INFO L470 AbstractCegarLoop]: Abstraction has 849 states and 1111 transitions. [2021-12-06 19:18:12,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1111 transitions. [2021-12-06 19:18:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 19:18:12,914 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:12,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:12,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:13,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:13,115 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -299447701, now seen corresponding path program 1 times [2021-12-06 19:18:13,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:13,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730043895] [2021-12-06 19:18:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:13,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:13,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:13,120 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:13,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-12-06 19:18:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:13,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:13,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:13,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:13,359 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:13,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730043895] [2021-12-06 19:18:13,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730043895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:13,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:13,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:13,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26733788] [2021-12-06 19:18:13,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:13,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:13,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:13,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:13,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:13,360 INFO L87 Difference]: Start difference. First operand 849 states and 1111 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:13,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:13,531 INFO L93 Difference]: Finished difference Result 901 states and 1163 transitions. [2021-12-06 19:18:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2021-12-06 19:18:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:13,533 INFO L225 Difference]: With dead ends: 901 [2021-12-06 19:18:13,533 INFO L226 Difference]: Without dead ends: 886 [2021-12-06 19:18:13,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:13,533 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 46 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:13,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 4849 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-12-06 19:18:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 846. [2021-12-06 19:18:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 714 states have (on average 1.2857142857142858) internal successors, (918), 729 states have internal predecessors, (918), 80 states have call successors, (80), 38 states have call predecessors, (80), 51 states have return successors, (107), 78 states have call predecessors, (107), 74 states have call successors, (107) [2021-12-06 19:18:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1105 transitions. [2021-12-06 19:18:13,541 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1105 transitions. Word has length 51 [2021-12-06 19:18:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:13,541 INFO L470 AbstractCegarLoop]: Abstraction has 846 states and 1105 transitions. [2021-12-06 19:18:13,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1105 transitions. [2021-12-06 19:18:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 19:18:13,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:13,542 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:13,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2021-12-06 19:18:13,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:13,743 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 198506457, now seen corresponding path program 1 times [2021-12-06 19:18:13,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:13,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589554020] [2021-12-06 19:18:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:13,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:13,748 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:13,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2021-12-06 19:18:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:13,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:13,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:13,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:13,964 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:13,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589554020] [2021-12-06 19:18:13,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589554020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:13,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:13,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:18:13,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375300757] [2021-12-06 19:18:13,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:13,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:18:13,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:13,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:18:13,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:13,965 INFO L87 Difference]: Start difference. First operand 846 states and 1105 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:14,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:14,113 INFO L93 Difference]: Finished difference Result 870 states and 1131 transitions. [2021-12-06 19:18:14,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2021-12-06 19:18:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:14,115 INFO L225 Difference]: With dead ends: 870 [2021-12-06 19:18:14,115 INFO L226 Difference]: Without dead ends: 869 [2021-12-06 19:18:14,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:14,116 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 569 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:14,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 893 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:14,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2021-12-06 19:18:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 831. [2021-12-06 19:18:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 701 states have (on average 1.282453637660485) internal successors, (899), 716 states have internal predecessors, (899), 80 states have call successors, (80), 38 states have call predecessors, (80), 49 states have return successors, (105), 76 states have call predecessors, (105), 74 states have call successors, (105) [2021-12-06 19:18:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1084 transitions. [2021-12-06 19:18:14,127 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1084 transitions. Word has length 69 [2021-12-06 19:18:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:14,127 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1084 transitions. [2021-12-06 19:18:14,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1084 transitions. [2021-12-06 19:18:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 19:18:14,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:14,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:14,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (75)] Ended with exit code 0 [2021-12-06 19:18:14,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:14,330 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:14,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:14,330 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2021-12-06 19:18:14,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:14,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77694734] [2021-12-06 19:18:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:14,331 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:14,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:14,332 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:14,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2021-12-06 19:18:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:14,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:14,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:14,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:14,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:14,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77694734] [2021-12-06 19:18:14,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77694734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:14,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:14,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:14,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357335992] [2021-12-06 19:18:14,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:14,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:14,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:14,584 INFO L87 Difference]: Start difference. First operand 831 states and 1084 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:14,618 INFO L93 Difference]: Finished difference Result 852 states and 1107 transitions. [2021-12-06 19:18:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:14,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2021-12-06 19:18:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:14,619 INFO L225 Difference]: With dead ends: 852 [2021-12-06 19:18:14,619 INFO L226 Difference]: Without dead ends: 852 [2021-12-06 19:18:14,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:14,619 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 23 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:14,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 1976 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:14,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-12-06 19:18:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 831. [2021-12-06 19:18:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 701 states have (on average 1.2810271041369472) internal successors, (898), 716 states have internal predecessors, (898), 80 states have call successors, (80), 38 states have call predecessors, (80), 49 states have return successors, (105), 76 states have call predecessors, (105), 74 states have call successors, (105) [2021-12-06 19:18:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1083 transitions. [2021-12-06 19:18:14,627 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1083 transitions. Word has length 52 [2021-12-06 19:18:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:14,627 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1083 transitions. [2021-12-06 19:18:14,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1083 transitions. [2021-12-06 19:18:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 19:18:14,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:14,628 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:14,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2021-12-06 19:18:14,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:14,829 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1620180035, now seen corresponding path program 1 times [2021-12-06 19:18:14,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:14,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314022958] [2021-12-06 19:18:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:14,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:14,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:14,833 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:14,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2021-12-06 19:18:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:14,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:14,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:15,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:15,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:15,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:15,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314022958] [2021-12-06 19:18:15,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314022958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:15,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:15,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:18:15,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963417832] [2021-12-06 19:18:15,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:15,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:18:15,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:18:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:15,031 INFO L87 Difference]: Start difference. First operand 831 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:18:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:15,041 INFO L93 Difference]: Finished difference Result 910 states and 1184 transitions. [2021-12-06 19:18:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:18:15,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2021-12-06 19:18:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:15,042 INFO L225 Difference]: With dead ends: 910 [2021-12-06 19:18:15,043 INFO L226 Difference]: Without dead ends: 910 [2021-12-06 19:18:15,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:15,043 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 101 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:15,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1010 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-12-06 19:18:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 877. [2021-12-06 19:18:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 740 states have (on average 1.2797297297297296) internal successors, (947), 756 states have internal predecessors, (947), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 80 states have call predecessors, (111), 76 states have call successors, (111) [2021-12-06 19:18:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1139 transitions. [2021-12-06 19:18:15,051 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1139 transitions. Word has length 70 [2021-12-06 19:18:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:15,051 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1139 transitions. [2021-12-06 19:18:15,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 19:18:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1139 transitions. [2021-12-06 19:18:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:15,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:15,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:15,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (77)] Ended with exit code 0 [2021-12-06 19:18:15,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:15,253 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1308862555, now seen corresponding path program 1 times [2021-12-06 19:18:15,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313932035] [2021-12-06 19:18:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:15,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:15,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:15,258 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:15,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2021-12-06 19:18:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:15,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:18:15,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:15,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:15,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:15,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313932035] [2021-12-06 19:18:15,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313932035] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:15,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:15,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:18:15,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841382816] [2021-12-06 19:18:15,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:15,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:18:15,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:18:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:18:15,454 INFO L87 Difference]: Start difference. First operand 877 states and 1139 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:15,485 INFO L93 Difference]: Finished difference Result 898 states and 1162 transitions. [2021-12-06 19:18:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:15,486 INFO L225 Difference]: With dead ends: 898 [2021-12-06 19:18:15,486 INFO L226 Difference]: Without dead ends: 898 [2021-12-06 19:18:15,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:15,487 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 39 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:15,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1447 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:15,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-12-06 19:18:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 879. [2021-12-06 19:18:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 742 states have (on average 1.278975741239892) internal successors, (949), 758 states have internal predecessors, (949), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 80 states have call predecessors, (111), 76 states have call successors, (111) [2021-12-06 19:18:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1141 transitions. [2021-12-06 19:18:15,495 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1141 transitions. Word has length 53 [2021-12-06 19:18:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:15,495 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1141 transitions. [2021-12-06 19:18:15,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1141 transitions. [2021-12-06 19:18:15,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:15,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:15,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:15,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (78)] Ended with exit code 0 [2021-12-06 19:18:15,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:15,697 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:15,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1442876061, now seen corresponding path program 1 times [2021-12-06 19:18:15,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:15,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400952773] [2021-12-06 19:18:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:15,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:15,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:15,701 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:15,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-12-06 19:18:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:15,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:18:15,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:15,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:15,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:15,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400952773] [2021-12-06 19:18:15,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400952773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:15,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:15,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:18:15,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238254503] [2021-12-06 19:18:15,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:15,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:18:15,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:15,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:18:15,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:15,866 INFO L87 Difference]: Start difference. First operand 879 states and 1141 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:15,937 INFO L93 Difference]: Finished difference Result 897 states and 1160 transitions. [2021-12-06 19:18:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:18:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:15,938 INFO L225 Difference]: With dead ends: 897 [2021-12-06 19:18:15,938 INFO L226 Difference]: Without dead ends: 877 [2021-12-06 19:18:15,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:18:15,938 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 60 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:15,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 2895 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:15,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-12-06 19:18:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 875. [2021-12-06 19:18:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 738 states have (on average 1.2791327913279134) internal successors, (944), 755 states have internal predecessors, (944), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2021-12-06 19:18:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1136 transitions. [2021-12-06 19:18:15,946 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1136 transitions. Word has length 53 [2021-12-06 19:18:15,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:15,946 INFO L470 AbstractCegarLoop]: Abstraction has 875 states and 1136 transitions. [2021-12-06 19:18:15,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1136 transitions. [2021-12-06 19:18:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:15,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:15,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:15,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2021-12-06 19:18:16,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:16,148 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:16,149 INFO L85 PathProgramCache]: Analyzing trace with hash 820450658, now seen corresponding path program 1 times [2021-12-06 19:18:16,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:16,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844680554] [2021-12-06 19:18:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:16,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:16,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:16,153 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:16,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2021-12-06 19:18:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:16,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:16,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:16,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:16,342 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:16,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844680554] [2021-12-06 19:18:16,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844680554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:16,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:16,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:16,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741009596] [2021-12-06 19:18:16,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:16,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:16,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:16,343 INFO L87 Difference]: Start difference. First operand 875 states and 1136 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:16,378 INFO L93 Difference]: Finished difference Result 896 states and 1159 transitions. [2021-12-06 19:18:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:16,380 INFO L225 Difference]: With dead ends: 896 [2021-12-06 19:18:16,380 INFO L226 Difference]: Without dead ends: 896 [2021-12-06 19:18:16,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:16,380 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 45 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:16,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 2445 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-12-06 19:18:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 875. [2021-12-06 19:18:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 738 states have (on average 1.2777777777777777) internal successors, (943), 755 states have internal predecessors, (943), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2021-12-06 19:18:16,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1135 transitions. [2021-12-06 19:18:16,387 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1135 transitions. Word has length 53 [2021-12-06 19:18:16,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:16,388 INFO L470 AbstractCegarLoop]: Abstraction has 875 states and 1135 transitions. [2021-12-06 19:18:16,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:16,388 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1135 transitions. [2021-12-06 19:18:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:16,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:16,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:16,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (80)] Ended with exit code 0 [2021-12-06 19:18:16,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:16,590 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:16,591 INFO L85 PathProgramCache]: Analyzing trace with hash 882490272, now seen corresponding path program 1 times [2021-12-06 19:18:16,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:16,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943330018] [2021-12-06 19:18:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:16,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:16,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:16,594 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:16,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2021-12-06 19:18:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:16,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:16,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:16,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:16,753 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943330018] [2021-12-06 19:18:16,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943330018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:16,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:16,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:16,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141694268] [2021-12-06 19:18:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:16,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:16,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:16,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:16,754 INFO L87 Difference]: Start difference. First operand 875 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:16,798 INFO L93 Difference]: Finished difference Result 896 states and 1158 transitions. [2021-12-06 19:18:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:16,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:16,799 INFO L225 Difference]: With dead ends: 896 [2021-12-06 19:18:16,800 INFO L226 Difference]: Without dead ends: 896 [2021-12-06 19:18:16,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:16,800 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 39 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:16,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2440 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-12-06 19:18:16,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 877. [2021-12-06 19:18:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 740 states have (on average 1.277027027027027) internal successors, (945), 757 states have internal predecessors, (945), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2021-12-06 19:18:16,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1137 transitions. [2021-12-06 19:18:16,811 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1137 transitions. Word has length 53 [2021-12-06 19:18:16,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:16,811 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1137 transitions. [2021-12-06 19:18:16,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:16,812 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1137 transitions. [2021-12-06 19:18:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:16,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:16,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:16,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2021-12-06 19:18:17,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:17,013 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash 748476766, now seen corresponding path program 1 times [2021-12-06 19:18:17,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:17,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294397927] [2021-12-06 19:18:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:17,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:17,016 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-12-06 19:18:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:17,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:17,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:17,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:17,357 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:17,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294397927] [2021-12-06 19:18:17,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294397927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:17,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:17,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:17,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161667720] [2021-12-06 19:18:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:17,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:17,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:17,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:17,358 INFO L87 Difference]: Start difference. First operand 877 states and 1137 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:17,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:17,444 INFO L93 Difference]: Finished difference Result 895 states and 1156 transitions. [2021-12-06 19:18:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:17,446 INFO L225 Difference]: With dead ends: 895 [2021-12-06 19:18:17,446 INFO L226 Difference]: Without dead ends: 869 [2021-12-06 19:18:17,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:17,447 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 60 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:17,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3855 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2021-12-06 19:18:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2021-12-06 19:18:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 733 states have (on average 1.276944065484311) internal successors, (936), 750 states have internal predecessors, (936), 80 states have call successors, (80), 40 states have call predecessors, (80), 55 states have return successors, (110), 78 states have call predecessors, (110), 75 states have call successors, (110) [2021-12-06 19:18:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1126 transitions. [2021-12-06 19:18:17,455 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1126 transitions. Word has length 53 [2021-12-06 19:18:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:17,455 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1126 transitions. [2021-12-06 19:18:17,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1126 transitions. [2021-12-06 19:18:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:17,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:17,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:17,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (82)] Ended with exit code 0 [2021-12-06 19:18:17,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:17,657 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:17,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:17,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1994228703, now seen corresponding path program 1 times [2021-12-06 19:18:17,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:17,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143765912] [2021-12-06 19:18:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:17,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:17,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:17,662 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:17,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2021-12-06 19:18:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:17,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:17,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:17,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:17,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:17,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143765912] [2021-12-06 19:18:17,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143765912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:17,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:17,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:17,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557907386] [2021-12-06 19:18:17,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:17,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:17,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:17,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:17,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:17,810 INFO L87 Difference]: Start difference. First operand 869 states and 1126 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:17,840 INFO L93 Difference]: Finished difference Result 878 states and 1130 transitions. [2021-12-06 19:18:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:17,841 INFO L225 Difference]: With dead ends: 878 [2021-12-06 19:18:17,841 INFO L226 Difference]: Without dead ends: 878 [2021-12-06 19:18:17,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:17,842 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 39 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:17,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2324 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2021-12-06 19:18:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 862. [2021-12-06 19:18:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 728 states have (on average 1.2733516483516483) internal successors, (927), 745 states have internal predecessors, (927), 78 states have call successors, (78), 40 states have call predecessors, (78), 55 states have return successors, (108), 76 states have call predecessors, (108), 73 states have call successors, (108) [2021-12-06 19:18:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1113 transitions. [2021-12-06 19:18:17,851 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1113 transitions. Word has length 53 [2021-12-06 19:18:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:17,851 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1113 transitions. [2021-12-06 19:18:17,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1113 transitions. [2021-12-06 19:18:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:17,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:17,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:17,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:18,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:18,053 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1860215197, now seen corresponding path program 1 times [2021-12-06 19:18:18,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:18,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100788322] [2021-12-06 19:18:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:18,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:18,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:18,059 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:18,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2021-12-06 19:18:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:18,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:18,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:18,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:18,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:18,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100788322] [2021-12-06 19:18:18,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100788322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:18,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:18,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:18,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854313297] [2021-12-06 19:18:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:18,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:18,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:18,212 INFO L87 Difference]: Start difference. First operand 862 states and 1113 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:18,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:18,283 INFO L93 Difference]: Finished difference Result 877 states and 1128 transitions. [2021-12-06 19:18:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:18,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2021-12-06 19:18:18,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:18,284 INFO L225 Difference]: With dead ends: 877 [2021-12-06 19:18:18,284 INFO L226 Difference]: Without dead ends: 852 [2021-12-06 19:18:18,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:18,284 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 60 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:18,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3671 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-12-06 19:18:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 852. [2021-12-06 19:18:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 720 states have (on average 1.273611111111111) internal successors, (917), 737 states have internal predecessors, (917), 76 states have call successors, (76), 40 states have call predecessors, (76), 55 states have return successors, (105), 74 states have call predecessors, (105), 71 states have call successors, (105) [2021-12-06 19:18:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1098 transitions. [2021-12-06 19:18:18,292 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1098 transitions. Word has length 53 [2021-12-06 19:18:18,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:18,292 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 1098 transitions. [2021-12-06 19:18:18,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1098 transitions. [2021-12-06 19:18:18,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 19:18:18,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:18,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:18,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (84)] Ended with exit code 0 [2021-12-06 19:18:18,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:18,494 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2021-12-06 19:18:18,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:18,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776321621] [2021-12-06 19:18:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:18,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:18,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:18,499 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:18,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-12-06 19:18:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:18,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:18,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:18,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:18,762 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:18,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776321621] [2021-12-06 19:18:18,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776321621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:18,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:18,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:18,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971191997] [2021-12-06 19:18:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:18,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:18,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:18,763 INFO L87 Difference]: Start difference. First operand 852 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:18,973 INFO L93 Difference]: Finished difference Result 861 states and 1105 transitions. [2021-12-06 19:18:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:18:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2021-12-06 19:18:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:18,974 INFO L225 Difference]: With dead ends: 861 [2021-12-06 19:18:18,975 INFO L226 Difference]: Without dead ends: 861 [2021-12-06 19:18:18,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:18,975 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 459 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:18,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 1119 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:18:18,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2021-12-06 19:18:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 852. [2021-12-06 19:18:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 720 states have (on average 1.2708333333333333) internal successors, (915), 737 states have internal predecessors, (915), 76 states have call successors, (76), 40 states have call predecessors, (76), 55 states have return successors, (105), 74 states have call predecessors, (105), 71 states have call successors, (105) [2021-12-06 19:18:18,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1096 transitions. [2021-12-06 19:18:18,984 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1096 transitions. Word has length 53 [2021-12-06 19:18:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:18,984 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 1096 transitions. [2021-12-06 19:18:18,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1096 transitions. [2021-12-06 19:18:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 19:18:18,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:18,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:18,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2021-12-06 19:18:19,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:19,187 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:19,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash -507761203, now seen corresponding path program 1 times [2021-12-06 19:18:19,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:19,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738595295] [2021-12-06 19:18:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:19,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:19,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:19,191 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:19,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2021-12-06 19:18:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:19,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:18:19,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:19,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:19,369 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:19,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738595295] [2021-12-06 19:18:19,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738595295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:19,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:19,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:19,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283123939] [2021-12-06 19:18:19,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:19,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:19,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:19,370 INFO L87 Difference]: Start difference. First operand 852 states and 1096 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:19,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:19,504 INFO L93 Difference]: Finished difference Result 869 states and 1114 transitions. [2021-12-06 19:18:19,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:19,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2021-12-06 19:18:19,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:19,505 INFO L225 Difference]: With dead ends: 869 [2021-12-06 19:18:19,505 INFO L226 Difference]: Without dead ends: 852 [2021-12-06 19:18:19,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:19,506 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 62 mSDsluCounter, 3499 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:19,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 3942 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-12-06 19:18:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 844. [2021-12-06 19:18:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 714 states have (on average 1.2703081232492996) internal successors, (907), 731 states have internal predecessors, (907), 76 states have call successors, (76), 40 states have call predecessors, (76), 53 states have return successors, (95), 72 states have call predecessors, (95), 71 states have call successors, (95) [2021-12-06 19:18:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1078 transitions. [2021-12-06 19:18:19,516 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1078 transitions. Word has length 55 [2021-12-06 19:18:19,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:19,516 INFO L470 AbstractCegarLoop]: Abstraction has 844 states and 1078 transitions. [2021-12-06 19:18:19,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:19,516 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1078 transitions. [2021-12-06 19:18:19,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 19:18:19,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:19,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:19,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (86)] Ended with exit code 0 [2021-12-06 19:18:19,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:19,718 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2021-12-06 19:18:19,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:19,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732461330] [2021-12-06 19:18:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:19,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:19,723 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:19,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2021-12-06 19:18:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:19,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:19,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:19,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:19,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:19,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732461330] [2021-12-06 19:18:19,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732461330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:19,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:19,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:19,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170230273] [2021-12-06 19:18:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:19,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:19,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:19,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:19,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:19,978 INFO L87 Difference]: Start difference. First operand 844 states and 1078 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:18:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:20,115 INFO L93 Difference]: Finished difference Result 858 states and 1090 transitions. [2021-12-06 19:18:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2021-12-06 19:18:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:20,117 INFO L225 Difference]: With dead ends: 858 [2021-12-06 19:18:20,117 INFO L226 Difference]: Without dead ends: 832 [2021-12-06 19:18:20,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:18:20,117 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 62 mSDsluCounter, 4388 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4838 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:20,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4838 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2021-12-06 19:18:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2021-12-06 19:18:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 706 states have (on average 1.2677053824362605) internal successors, (895), 722 states have internal predecessors, (895), 72 states have call successors, (72), 40 states have call predecessors, (72), 53 states have return successors, (90), 69 states have call predecessors, (90), 67 states have call successors, (90) [2021-12-06 19:18:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1057 transitions. [2021-12-06 19:18:20,126 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1057 transitions. Word has length 59 [2021-12-06 19:18:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:20,127 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1057 transitions. [2021-12-06 19:18:20,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 19:18:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1057 transitions. [2021-12-06 19:18:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 19:18:20,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:20,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:20,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2021-12-06 19:18:20,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:20,329 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:20,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:20,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2021-12-06 19:18:20,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:20,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106600768] [2021-12-06 19:18:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:20,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:20,334 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:20,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-12-06 19:18:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:20,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:20,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:20,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:20,529 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:20,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106600768] [2021-12-06 19:18:20,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106600768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:20,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:20,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:20,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607036923] [2021-12-06 19:18:20,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:20,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:20,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:20,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:20,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:20,530 INFO L87 Difference]: Start difference. First operand 832 states and 1057 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:20,663 INFO L93 Difference]: Finished difference Result 849 states and 1075 transitions. [2021-12-06 19:18:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2021-12-06 19:18:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:20,665 INFO L225 Difference]: With dead ends: 849 [2021-12-06 19:18:20,665 INFO L226 Difference]: Without dead ends: 829 [2021-12-06 19:18:20,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:18:20,665 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 62 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4728 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:20,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4728 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2021-12-06 19:18:20,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2021-12-06 19:18:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 704 states have (on average 1.265625) internal successors, (891), 720 states have internal predecessors, (891), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2021-12-06 19:18:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1051 transitions. [2021-12-06 19:18:20,672 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1051 transitions. Word has length 55 [2021-12-06 19:18:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:20,672 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 1051 transitions. [2021-12-06 19:18:20,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1051 transitions. [2021-12-06 19:18:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:20,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:20,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:20,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2021-12-06 19:18:20,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:20,875 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:20,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:20,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2021-12-06 19:18:20,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:20,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170330754] [2021-12-06 19:18:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:20,877 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:20,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:20,880 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:20,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2021-12-06 19:18:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:20,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:20,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:21,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:21,015 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:21,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170330754] [2021-12-06 19:18:21,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170330754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:21,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:21,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:21,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110354057] [2021-12-06 19:18:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:21,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:21,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:21,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:21,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:21,016 INFO L87 Difference]: Start difference. First operand 829 states and 1051 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:21,037 INFO L93 Difference]: Finished difference Result 850 states and 1074 transitions. [2021-12-06 19:18:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:21,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:18:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:21,038 INFO L225 Difference]: With dead ends: 850 [2021-12-06 19:18:21,038 INFO L226 Difference]: Without dead ends: 850 [2021-12-06 19:18:21,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:21,038 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 22 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:21,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1742 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2021-12-06 19:18:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 829. [2021-12-06 19:18:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 704 states have (on average 1.2642045454545454) internal successors, (890), 720 states have internal predecessors, (890), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2021-12-06 19:18:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1050 transitions. [2021-12-06 19:18:21,045 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1050 transitions. Word has length 54 [2021-12-06 19:18:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:21,045 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 1050 transitions. [2021-12-06 19:18:21,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1050 transitions. [2021-12-06 19:18:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:21,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:21,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:21,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (89)] Ended with exit code 0 [2021-12-06 19:18:21,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:21,247 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:21,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2119111294, now seen corresponding path program 1 times [2021-12-06 19:18:21,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:21,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851422978] [2021-12-06 19:18:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:21,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:21,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:21,251 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:21,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2021-12-06 19:18:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:21,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:21,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:21,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:21,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:21,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851422978] [2021-12-06 19:18:21,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851422978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:21,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:21,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:21,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107066923] [2021-12-06 19:18:21,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:21,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:21,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:21,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:21,383 INFO L87 Difference]: Start difference. First operand 829 states and 1050 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:21,415 INFO L93 Difference]: Finished difference Result 850 states and 1073 transitions. [2021-12-06 19:18:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:18:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:21,417 INFO L225 Difference]: With dead ends: 850 [2021-12-06 19:18:21,417 INFO L226 Difference]: Without dead ends: 850 [2021-12-06 19:18:21,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:21,417 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 39 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:21,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2159 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2021-12-06 19:18:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 831. [2021-12-06 19:18:21,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 706 states have (on average 1.2634560906515582) internal successors, (892), 722 states have internal predecessors, (892), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2021-12-06 19:18:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1052 transitions. [2021-12-06 19:18:21,424 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1052 transitions. Word has length 54 [2021-12-06 19:18:21,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:21,424 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1052 transitions. [2021-12-06 19:18:21,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1052 transitions. [2021-12-06 19:18:21,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:21,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:21,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:21,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2021-12-06 19:18:21,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:21,625 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1985097788, now seen corresponding path program 1 times [2021-12-06 19:18:21,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:21,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134325533] [2021-12-06 19:18:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:21,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:21,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:21,626 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:21,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-12-06 19:18:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:21,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:21,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:21,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:21,769 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:21,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134325533] [2021-12-06 19:18:21,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134325533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:21,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:21,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:21,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968396171] [2021-12-06 19:18:21,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:21,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:21,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:21,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:21,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:21,770 INFO L87 Difference]: Start difference. First operand 831 states and 1052 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:21,838 INFO L93 Difference]: Finished difference Result 849 states and 1071 transitions. [2021-12-06 19:18:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:18:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:21,839 INFO L225 Difference]: With dead ends: 849 [2021-12-06 19:18:21,839 INFO L226 Difference]: Without dead ends: 824 [2021-12-06 19:18:21,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:21,839 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 60 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:21,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3410 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-12-06 19:18:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2021-12-06 19:18:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 700 states have (on average 1.262857142857143) internal successors, (884), 716 states have internal predecessors, (884), 70 states have call successors, (70), 40 states have call predecessors, (70), 53 states have return successors, (88), 67 states have call predecessors, (88), 65 states have call successors, (88) [2021-12-06 19:18:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1042 transitions. [2021-12-06 19:18:21,850 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1042 transitions. Word has length 54 [2021-12-06 19:18:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:21,850 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1042 transitions. [2021-12-06 19:18:21,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1042 transitions. [2021-12-06 19:18:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:21,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:21,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:21,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:22,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:22,052 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:22,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2021-12-06 19:18:22,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:22,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537763679] [2021-12-06 19:18:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:22,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:22,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:22,056 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:22,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2021-12-06 19:18:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:22,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:22,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:22,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:22,287 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:22,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537763679] [2021-12-06 19:18:22,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537763679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:22,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:22,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:22,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705596018] [2021-12-06 19:18:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:22,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:22,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:22,288 INFO L87 Difference]: Start difference. First operand 824 states and 1042 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:22,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:22,315 INFO L93 Difference]: Finished difference Result 845 states and 1065 transitions. [2021-12-06 19:18:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:18:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:22,317 INFO L225 Difference]: With dead ends: 845 [2021-12-06 19:18:22,317 INFO L226 Difference]: Without dead ends: 845 [2021-12-06 19:18:22,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:22,317 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 39 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:22,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2130 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2021-12-06 19:18:22,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 826. [2021-12-06 19:18:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 702 states have (on average 1.2621082621082622) internal successors, (886), 718 states have internal predecessors, (886), 70 states have call successors, (70), 40 states have call predecessors, (70), 53 states have return successors, (88), 67 states have call predecessors, (88), 65 states have call successors, (88) [2021-12-06 19:18:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1044 transitions. [2021-12-06 19:18:22,324 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1044 transitions. Word has length 54 [2021-12-06 19:18:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:22,324 INFO L470 AbstractCegarLoop]: Abstraction has 826 states and 1044 transitions. [2021-12-06 19:18:22,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1044 transitions. [2021-12-06 19:18:22,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:22,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:22,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:22,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (92)] Ended with exit code 0 [2021-12-06 19:18:22,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:22,526 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:22,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1435892534, now seen corresponding path program 1 times [2021-12-06 19:18:22,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:22,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196716888] [2021-12-06 19:18:22,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:22,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:22,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:22,530 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:22,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2021-12-06 19:18:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:22,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:22,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:22,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:22,746 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:22,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196716888] [2021-12-06 19:18:22,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196716888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:22,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:22,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:22,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575653945] [2021-12-06 19:18:22,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:22,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:22,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:22,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:22,747 INFO L87 Difference]: Start difference. First operand 826 states and 1044 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:22,821 INFO L93 Difference]: Finished difference Result 844 states and 1063 transitions. [2021-12-06 19:18:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2021-12-06 19:18:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:22,822 INFO L225 Difference]: With dead ends: 844 [2021-12-06 19:18:22,822 INFO L226 Difference]: Without dead ends: 821 [2021-12-06 19:18:22,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:22,822 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 60 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:22,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3363 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2021-12-06 19:18:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2021-12-06 19:18:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 698 states have (on average 1.2607449856733524) internal successors, (880), 714 states have internal predecessors, (880), 69 states have call successors, (69), 40 states have call predecessors, (69), 53 states have return successors, (87), 66 states have call predecessors, (87), 64 states have call successors, (87) [2021-12-06 19:18:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1036 transitions. [2021-12-06 19:18:22,829 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1036 transitions. Word has length 54 [2021-12-06 19:18:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:22,829 INFO L470 AbstractCegarLoop]: Abstraction has 821 states and 1036 transitions. [2021-12-06 19:18:22,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1036 transitions. [2021-12-06 19:18:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 19:18:22,830 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:22,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:22,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (93)] Ended with exit code 0 [2021-12-06 19:18:23,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,032 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2021-12-06 19:18:23,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:23,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712974995] [2021-12-06 19:18:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:23,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:23,036 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:23,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2021-12-06 19:18:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:23,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:18:23,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:23,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:23,267 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:23,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712974995] [2021-12-06 19:18:23,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712974995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:23,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:23,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:23,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335181706] [2021-12-06 19:18:23,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:23,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:23,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:23,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:23,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:23,268 INFO L87 Difference]: Start difference. First operand 821 states and 1036 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:23,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:23,384 INFO L93 Difference]: Finished difference Result 901 states and 1127 transitions. [2021-12-06 19:18:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:23,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2021-12-06 19:18:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:23,386 INFO L225 Difference]: With dead ends: 901 [2021-12-06 19:18:23,386 INFO L226 Difference]: Without dead ends: 850 [2021-12-06 19:18:23,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:18:23,386 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 91 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:23,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 3563 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2021-12-06 19:18:23,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 831. [2021-12-06 19:18:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 707 states have (on average 1.2475247524752475) internal successors, (882), 723 states have internal predecessors, (882), 69 states have call successors, (69), 40 states have call predecessors, (69), 54 states have return successors, (88), 67 states have call predecessors, (88), 64 states have call successors, (88) [2021-12-06 19:18:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1039 transitions. [2021-12-06 19:18:23,393 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1039 transitions. Word has length 54 [2021-12-06 19:18:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:23,393 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1039 transitions. [2021-12-06 19:18:23,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1039 transitions. [2021-12-06 19:18:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:23,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:23,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:23,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (94)] Ended with exit code 0 [2021-12-06 19:18:23,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,595 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:23,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2021-12-06 19:18:23,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:23,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242149546] [2021-12-06 19:18:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:23,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:23,598 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:23,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2021-12-06 19:18:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:23,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:18:23,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:23,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:23,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:23,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242149546] [2021-12-06 19:18:23,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242149546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:23,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:23,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:18:23,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539904297] [2021-12-06 19:18:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:23,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:18:23,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:18:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:23,755 INFO L87 Difference]: Start difference. First operand 831 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:23,772 INFO L93 Difference]: Finished difference Result 849 states and 1058 transitions. [2021-12-06 19:18:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:18:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2021-12-06 19:18:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:23,774 INFO L225 Difference]: With dead ends: 849 [2021-12-06 19:18:23,774 INFO L226 Difference]: Without dead ends: 849 [2021-12-06 19:18:23,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:18:23,774 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 18 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:23,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2021-12-06 19:18:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 831. [2021-12-06 19:18:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 707 states have (on average 1.2461103253182462) internal successors, (881), 723 states have internal predecessors, (881), 69 states have call successors, (69), 40 states have call predecessors, (69), 54 states have return successors, (88), 67 states have call predecessors, (88), 64 states have call successors, (88) [2021-12-06 19:18:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1038 transitions. [2021-12-06 19:18:23,786 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1038 transitions. Word has length 56 [2021-12-06 19:18:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:23,786 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1038 transitions. [2021-12-06 19:18:23,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1038 transitions. [2021-12-06 19:18:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:23,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:23,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:23,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (95)] Ended with exit code 0 [2021-12-06 19:18:23,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,988 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:23,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2021-12-06 19:18:23,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:23,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181434810] [2021-12-06 19:18:23,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:23,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:23,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:23,990 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:23,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2021-12-06 19:18:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:24,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:24,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:24,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:24,170 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:24,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181434810] [2021-12-06 19:18:24,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181434810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:24,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:24,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:24,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387729058] [2021-12-06 19:18:24,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:24,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:24,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:24,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:24,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:24,171 INFO L87 Difference]: Start difference. First operand 831 states and 1038 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:24,297 INFO L93 Difference]: Finished difference Result 848 states and 1056 transitions. [2021-12-06 19:18:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2021-12-06 19:18:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:24,298 INFO L225 Difference]: With dead ends: 848 [2021-12-06 19:18:24,298 INFO L226 Difference]: Without dead ends: 824 [2021-12-06 19:18:24,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:18:24,299 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 62 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:24,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4494 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:24,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-12-06 19:18:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2021-12-06 19:18:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 701 states have (on average 1.2453637660485022) internal successors, (873), 717 states have internal predecessors, (873), 68 states have call successors, (68), 40 states have call predecessors, (68), 54 states have return successors, (86), 66 states have call predecessors, (86), 63 states have call successors, (86) [2021-12-06 19:18:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1027 transitions. [2021-12-06 19:18:24,309 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1027 transitions. Word has length 56 [2021-12-06 19:18:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:24,309 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1027 transitions. [2021-12-06 19:18:24,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1027 transitions. [2021-12-06 19:18:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:24,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:24,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:24,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (96)] Ended with exit code 0 [2021-12-06 19:18:24,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:24,511 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2005785928, now seen corresponding path program 1 times [2021-12-06 19:18:24,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:24,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236970260] [2021-12-06 19:18:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:24,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:24,516 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:24,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2021-12-06 19:18:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:24,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:24,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:24,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:24,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:24,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236970260] [2021-12-06 19:18:24,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236970260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:24,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:24,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:24,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939336340] [2021-12-06 19:18:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:24,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:24,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:24,821 INFO L87 Difference]: Start difference. First operand 824 states and 1027 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:24,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:24,963 INFO L93 Difference]: Finished difference Result 841 states and 1044 transitions. [2021-12-06 19:18:24,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:24,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2021-12-06 19:18:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:24,964 INFO L225 Difference]: With dead ends: 841 [2021-12-06 19:18:24,964 INFO L226 Difference]: Without dead ends: 819 [2021-12-06 19:18:24,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:18:24,964 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 62 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4396 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:24,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4396 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-12-06 19:18:24,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2021-12-06 19:18:24,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 697 states have (on average 1.242467718794835) internal successors, (866), 713 states have internal predecessors, (866), 67 states have call successors, (67), 40 states have call predecessors, (67), 54 states have return successors, (85), 65 states have call predecessors, (85), 62 states have call successors, (85) [2021-12-06 19:18:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1018 transitions. [2021-12-06 19:18:24,974 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1018 transitions. Word has length 56 [2021-12-06 19:18:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:24,974 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1018 transitions. [2021-12-06 19:18:24,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1018 transitions. [2021-12-06 19:18:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 19:18:24,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:24,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:24,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (97)] Ended with exit code 0 [2021-12-06 19:18:25,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:25,176 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:25,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2021-12-06 19:18:25,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:25,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718859076] [2021-12-06 19:18:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:25,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:25,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:25,181 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:25,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2021-12-06 19:18:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:25,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:25,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:25,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:25,459 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:25,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718859076] [2021-12-06 19:18:25,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718859076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:25,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:25,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:25,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267757155] [2021-12-06 19:18:25,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:25,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:25,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:25,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:25,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:25,460 INFO L87 Difference]: Start difference. First operand 819 states and 1018 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:25,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:25,609 INFO L93 Difference]: Finished difference Result 842 states and 1041 transitions. [2021-12-06 19:18:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:25,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2021-12-06 19:18:25,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:25,610 INFO L225 Difference]: With dead ends: 842 [2021-12-06 19:18:25,610 INFO L226 Difference]: Without dead ends: 818 [2021-12-06 19:18:25,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:25,610 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 42 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 4258 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:25,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 4258 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:25,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2021-12-06 19:18:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2021-12-06 19:18:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 696 states have (on average 1.2399425287356323) internal successors, (863), 712 states have internal predecessors, (863), 67 states have call successors, (67), 40 states have call predecessors, (67), 54 states have return successors, (85), 65 states have call predecessors, (85), 62 states have call successors, (85) [2021-12-06 19:18:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1015 transitions. [2021-12-06 19:18:25,616 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1015 transitions. Word has length 64 [2021-12-06 19:18:25,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:25,616 INFO L470 AbstractCegarLoop]: Abstraction has 818 states and 1015 transitions. [2021-12-06 19:18:25,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1015 transitions. [2021-12-06 19:18:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 19:18:25,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:25,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:25,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (98)] Ended with exit code 0 [2021-12-06 19:18:25,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:25,818 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:25,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:25,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1622755266, now seen corresponding path program 1 times [2021-12-06 19:18:25,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612989762] [2021-12-06 19:18:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:25,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:25,823 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:25,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2021-12-06 19:18:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:25,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:18:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:25,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:25,976 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:25,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612989762] [2021-12-06 19:18:25,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612989762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:25,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:25,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:18:25,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922832623] [2021-12-06 19:18:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:25,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:18:25,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:25,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:18:25,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:25,977 INFO L87 Difference]: Start difference. First operand 818 states and 1015 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:25,983 INFO L93 Difference]: Finished difference Result 758 states and 924 transitions. [2021-12-06 19:18:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:18:25,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2021-12-06 19:18:25,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:25,984 INFO L225 Difference]: With dead ends: 758 [2021-12-06 19:18:25,984 INFO L226 Difference]: Without dead ends: 758 [2021-12-06 19:18:25,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:25,984 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:25,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 781 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-12-06 19:18:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2021-12-06 19:18:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 648 states have (on average 1.2175925925925926) internal successors, (789), 663 states have internal predecessors, (789), 60 states have call successors, (60), 35 states have call predecessors, (60), 49 states have return successors, (75), 59 states have call predecessors, (75), 56 states have call successors, (75) [2021-12-06 19:18:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 924 transitions. [2021-12-06 19:18:25,990 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 924 transitions. Word has length 59 [2021-12-06 19:18:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:25,990 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 924 transitions. [2021-12-06 19:18:25,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 19:18:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 924 transitions. [2021-12-06 19:18:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:25,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:25,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:25,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2021-12-06 19:18:26,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:26,192 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:26,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:26,193 INFO L85 PathProgramCache]: Analyzing trace with hash -233501783, now seen corresponding path program 1 times [2021-12-06 19:18:26,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:26,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454748375] [2021-12-06 19:18:26,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:26,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:26,197 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:26,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2021-12-06 19:18:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:26,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:26,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:26,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:26,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:26,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454748375] [2021-12-06 19:18:26,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454748375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:26,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:26,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:26,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478756792] [2021-12-06 19:18:26,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:26,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:26,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:26,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:26,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:26,438 INFO L87 Difference]: Start difference. First operand 758 states and 924 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:26,557 INFO L93 Difference]: Finished difference Result 774 states and 939 transitions. [2021-12-06 19:18:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:26,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2021-12-06 19:18:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:26,558 INFO L225 Difference]: With dead ends: 774 [2021-12-06 19:18:26,558 INFO L226 Difference]: Without dead ends: 748 [2021-12-06 19:18:26,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:18:26,559 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 62 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4256 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:26,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 4256 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:26,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-12-06 19:18:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-12-06 19:18:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 639 states have (on average 1.2097026604068857) internal successors, (773), 654 states have internal predecessors, (773), 59 states have call successors, (59), 35 states have call predecessors, (59), 49 states have return successors, (74), 58 states have call predecessors, (74), 55 states have call successors, (74) [2021-12-06 19:18:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 906 transitions. [2021-12-06 19:18:26,564 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 906 transitions. Word has length 57 [2021-12-06 19:18:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:26,564 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 906 transitions. [2021-12-06 19:18:26,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 19:18:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 906 transitions. [2021-12-06 19:18:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 19:18:26,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:26,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:26,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (100)] Ended with exit code 0 [2021-12-06 19:18:26,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:26,766 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash 704396185, now seen corresponding path program 1 times [2021-12-06 19:18:26,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:26,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120748171] [2021-12-06 19:18:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:26,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:26,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:26,771 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:26,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2021-12-06 19:18:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:26,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:26,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:27,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:27,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120748171] [2021-12-06 19:18:27,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120748171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:27,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:27,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:27,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541294756] [2021-12-06 19:18:27,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:27,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:27,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:27,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:27,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:27,001 INFO L87 Difference]: Start difference. First operand 748 states and 906 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:27,135 INFO L93 Difference]: Finished difference Result 802 states and 960 transitions. [2021-12-06 19:18:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2021-12-06 19:18:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:27,136 INFO L225 Difference]: With dead ends: 802 [2021-12-06 19:18:27,137 INFO L226 Difference]: Without dead ends: 778 [2021-12-06 19:18:27,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:27,137 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 42 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:27,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 4066 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2021-12-06 19:18:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 738. [2021-12-06 19:18:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 631 states have (on average 1.2107765451664025) internal successors, (764), 645 states have internal predecessors, (764), 59 states have call successors, (59), 35 states have call predecessors, (59), 47 states have return successors, (72), 57 states have call predecessors, (72), 55 states have call successors, (72) [2021-12-06 19:18:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 895 transitions. [2021-12-06 19:18:27,143 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 895 transitions. Word has length 66 [2021-12-06 19:18:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:27,143 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 895 transitions. [2021-12-06 19:18:27,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 895 transitions. [2021-12-06 19:18:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:27,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:27,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:27,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (101)] Ended with exit code 0 [2021-12-06 19:18:27,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:27,345 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:27,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1477617433, now seen corresponding path program 1 times [2021-12-06 19:18:27,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:27,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854003241] [2021-12-06 19:18:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:27,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:27,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:27,349 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:27,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2021-12-06 19:18:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:27,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:27,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:27,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:27,533 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854003241] [2021-12-06 19:18:27,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854003241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:27,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:27,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:27,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126671496] [2021-12-06 19:18:27,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:27,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:27,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:27,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:27,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:27,534 INFO L87 Difference]: Start difference. First operand 738 states and 895 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:27,566 INFO L93 Difference]: Finished difference Result 775 states and 935 transitions. [2021-12-06 19:18:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-12-06 19:18:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:27,567 INFO L225 Difference]: With dead ends: 775 [2021-12-06 19:18:27,568 INFO L226 Difference]: Without dead ends: 775 [2021-12-06 19:18:27,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:27,568 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 68 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:27,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1904 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:27,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-12-06 19:18:27,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 738. [2021-12-06 19:18:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 631 states have (on average 1.2091917591125199) internal successors, (763), 645 states have internal predecessors, (763), 59 states have call successors, (59), 35 states have call predecessors, (59), 47 states have return successors, (72), 57 states have call predecessors, (72), 55 states have call successors, (72) [2021-12-06 19:18:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 894 transitions. [2021-12-06 19:18:27,573 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 894 transitions. Word has length 57 [2021-12-06 19:18:27,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:27,574 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 894 transitions. [2021-12-06 19:18:27,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:27,574 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 894 transitions. [2021-12-06 19:18:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:27,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:27,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:27,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (102)] Ended with exit code 0 [2021-12-06 19:18:27,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:27,776 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:27,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1611630939, now seen corresponding path program 1 times [2021-12-06 19:18:27,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:27,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637970015] [2021-12-06 19:18:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:27,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:27,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:27,780 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:27,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2021-12-06 19:18:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:27,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:27,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:27,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:27,971 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:27,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637970015] [2021-12-06 19:18:27,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637970015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:27,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:27,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:27,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441640992] [2021-12-06 19:18:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:27,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:27,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:27,972 INFO L87 Difference]: Start difference. First operand 738 states and 894 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:28,047 INFO L93 Difference]: Finished difference Result 758 states and 916 transitions. [2021-12-06 19:18:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:28,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-12-06 19:18:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:28,048 INFO L225 Difference]: With dead ends: 758 [2021-12-06 19:18:28,048 INFO L226 Difference]: Without dead ends: 718 [2021-12-06 19:18:28,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:28,049 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 73 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:28,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 2970 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-12-06 19:18:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2021-12-06 19:18:28,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 615 states have (on average 1.2048780487804878) internal successors, (741), 628 states have internal predecessors, (741), 55 states have call successors, (55), 35 states have call predecessors, (55), 47 states have return successors, (67), 54 states have call predecessors, (67), 51 states have call successors, (67) [2021-12-06 19:18:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 863 transitions. [2021-12-06 19:18:28,057 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 863 transitions. Word has length 57 [2021-12-06 19:18:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:28,057 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 863 transitions. [2021-12-06 19:18:28,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 863 transitions. [2021-12-06 19:18:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:28,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:28,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:28,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (103)] Ended with exit code 0 [2021-12-06 19:18:28,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:28,259 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:28,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473366, now seen corresponding path program 1 times [2021-12-06 19:18:28,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:28,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671613468] [2021-12-06 19:18:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:28,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:28,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:28,263 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:28,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2021-12-06 19:18:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:28,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:18:28,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:28,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:28,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:28,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671613468] [2021-12-06 19:18:28,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671613468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:28,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:28,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:18:28,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680587443] [2021-12-06 19:18:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:28,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:18:28,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:18:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:18:28,451 INFO L87 Difference]: Start difference. First operand 718 states and 863 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:28,475 INFO L93 Difference]: Finished difference Result 737 states and 882 transitions. [2021-12-06 19:18:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:18:28,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2021-12-06 19:18:28,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:28,476 INFO L225 Difference]: With dead ends: 737 [2021-12-06 19:18:28,476 INFO L226 Difference]: Without dead ends: 737 [2021-12-06 19:18:28,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:18:28,476 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 39 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:28,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1744 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-06 19:18:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 718. [2021-12-06 19:18:28,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 615 states have (on average 1.2016260162601626) internal successors, (739), 628 states have internal predecessors, (739), 55 states have call successors, (55), 35 states have call predecessors, (55), 47 states have return successors, (67), 54 states have call predecessors, (67), 51 states have call successors, (67) [2021-12-06 19:18:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 861 transitions. [2021-12-06 19:18:28,482 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 861 transitions. Word has length 56 [2021-12-06 19:18:28,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:28,482 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 861 transitions. [2021-12-06 19:18:28,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 861 transitions. [2021-12-06 19:18:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:28,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:28,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:28,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (104)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:28,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:28,683 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1628459860, now seen corresponding path program 1 times [2021-12-06 19:18:28,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:28,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838007079] [2021-12-06 19:18:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:28,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:28,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:28,688 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:28,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2021-12-06 19:18:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:28,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:18:28,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:29,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:29,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:29,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838007079] [2021-12-06 19:18:29,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838007079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:29,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:29,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:18:29,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390062212] [2021-12-06 19:18:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:29,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:18:29,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:18:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:18:29,053 INFO L87 Difference]: Start difference. First operand 718 states and 861 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:29,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:29,119 INFO L93 Difference]: Finished difference Result 736 states and 880 transitions. [2021-12-06 19:18:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:18:29,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2021-12-06 19:18:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:29,120 INFO L225 Difference]: With dead ends: 736 [2021-12-06 19:18:29,120 INFO L226 Difference]: Without dead ends: 710 [2021-12-06 19:18:29,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:18:29,120 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 60 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:29,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 2733 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-12-06 19:18:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2021-12-06 19:18:29,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 608 states have (on average 1.200657894736842) internal successors, (730), 621 states have internal predecessors, (730), 54 states have call successors, (54), 35 states have call predecessors, (54), 47 states have return successors, (65), 53 states have call predecessors, (65), 50 states have call successors, (65) [2021-12-06 19:18:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 849 transitions. [2021-12-06 19:18:29,126 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 849 transitions. Word has length 56 [2021-12-06 19:18:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:29,126 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 849 transitions. [2021-12-06 19:18:29,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 19:18:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 849 transitions. [2021-12-06 19:18:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:29,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:29,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:29,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2021-12-06 19:18:29,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:29,327 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 474047414, now seen corresponding path program 1 times [2021-12-06 19:18:29,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:29,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274734599] [2021-12-06 19:18:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:29,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:29,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:29,330 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:29,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2021-12-06 19:18:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:29,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:18:29,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:29,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:29,613 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:29,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274734599] [2021-12-06 19:18:29,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274734599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:29,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:29,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:29,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579732314] [2021-12-06 19:18:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:29,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:29,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:29,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:29,614 INFO L87 Difference]: Start difference. First operand 710 states and 849 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:29,728 INFO L93 Difference]: Finished difference Result 814 states and 966 transitions. [2021-12-06 19:18:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:29,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-12-06 19:18:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:29,729 INFO L225 Difference]: With dead ends: 814 [2021-12-06 19:18:29,729 INFO L226 Difference]: Without dead ends: 786 [2021-12-06 19:18:29,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:18:29,729 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 90 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:29,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 2944 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-12-06 19:18:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 770. [2021-12-06 19:18:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 664 states have (on average 1.194277108433735) internal successors, (793), 678 states have internal predecessors, (793), 54 states have call successors, (54), 35 states have call predecessors, (54), 51 states have return successors, (69), 56 states have call predecessors, (69), 50 states have call successors, (69) [2021-12-06 19:18:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 916 transitions. [2021-12-06 19:18:29,735 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 916 transitions. Word has length 56 [2021-12-06 19:18:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:29,735 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 916 transitions. [2021-12-06 19:18:29,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 916 transitions. [2021-12-06 19:18:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:18:29,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:29,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:29,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (106)] Ended with exit code 0 [2021-12-06 19:18:29,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:29,938 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:29,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1924152368, now seen corresponding path program 1 times [2021-12-06 19:18:29,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:29,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382625154] [2021-12-06 19:18:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:29,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:29,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:29,942 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:29,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2021-12-06 19:18:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:30,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:18:30,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:30,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:30,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:30,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382625154] [2021-12-06 19:18:30,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382625154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:30,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:30,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:18:30,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274953663] [2021-12-06 19:18:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:30,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:18:30,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:30,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:18:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:30,226 INFO L87 Difference]: Start difference. First operand 770 states and 916 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:30,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:30,238 INFO L93 Difference]: Finished difference Result 783 states and 924 transitions. [2021-12-06 19:18:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:18:30,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-12-06 19:18:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:30,239 INFO L225 Difference]: With dead ends: 783 [2021-12-06 19:18:30,239 INFO L226 Difference]: Without dead ends: 777 [2021-12-06 19:18:30,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:30,239 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 320 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:30,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 386 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2021-12-06 19:18:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 727. [2021-12-06 19:18:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 623 states have (on average 1.1861958266452648) internal successors, (739), 637 states have internal predecessors, (739), 54 states have call successors, (54), 35 states have call predecessors, (54), 49 states have return successors, (67), 54 states have call predecessors, (67), 50 states have call successors, (67) [2021-12-06 19:18:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 860 transitions. [2021-12-06 19:18:30,244 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 860 transitions. Word has length 56 [2021-12-06 19:18:30,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:30,244 INFO L470 AbstractCegarLoop]: Abstraction has 727 states and 860 transitions. [2021-12-06 19:18:30,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 860 transitions. [2021-12-06 19:18:30,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 19:18:30,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:30,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:30,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (107)] Ended with exit code 0 [2021-12-06 19:18:30,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:30,446 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:30,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash 123923372, now seen corresponding path program 1 times [2021-12-06 19:18:30,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:30,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559457971] [2021-12-06 19:18:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:30,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:30,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:30,451 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:30,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2021-12-06 19:18:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:30,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:30,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:30,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:30,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559457971] [2021-12-06 19:18:30,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559457971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:30,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:30,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:30,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904736111] [2021-12-06 19:18:30,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:30,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:30,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:30,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:30,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:30,919 INFO L87 Difference]: Start difference. First operand 727 states and 860 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:31,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:31,065 INFO L93 Difference]: Finished difference Result 751 states and 884 transitions. [2021-12-06 19:18:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:31,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 67 [2021-12-06 19:18:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:31,066 INFO L225 Difference]: With dead ends: 751 [2021-12-06 19:18:31,066 INFO L226 Difference]: Without dead ends: 714 [2021-12-06 19:18:31,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:31,067 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 42 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:31,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 3607 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-12-06 19:18:31,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 698. [2021-12-06 19:18:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 597 states have (on average 1.1892797319932997) internal successors, (710), 610 states have internal predecessors, (710), 51 states have call successors, (51), 35 states have call predecessors, (51), 49 states have return successors, (64), 52 states have call predecessors, (64), 47 states have call successors, (64) [2021-12-06 19:18:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 825 transitions. [2021-12-06 19:18:31,072 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 825 transitions. Word has length 67 [2021-12-06 19:18:31,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:31,072 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 825 transitions. [2021-12-06 19:18:31,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 19:18:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 825 transitions. [2021-12-06 19:18:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:31,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:31,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:31,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (108)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:31,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:31,274 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:31,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1608050986, now seen corresponding path program 1 times [2021-12-06 19:18:31,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:31,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513548011] [2021-12-06 19:18:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:31,277 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:31,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:31,280 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:31,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2021-12-06 19:18:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:31,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:18:31,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:31,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:31,510 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:31,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513548011] [2021-12-06 19:18:31,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513548011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:31,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:31,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:18:31,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596867327] [2021-12-06 19:18:31,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:31,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:18:31,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:18:31,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:18:31,511 INFO L87 Difference]: Start difference. First operand 698 states and 825 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:31,645 INFO L93 Difference]: Finished difference Result 713 states and 839 transitions. [2021-12-06 19:18:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:18:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-12-06 19:18:31,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:31,646 INFO L225 Difference]: With dead ends: 713 [2021-12-06 19:18:31,646 INFO L226 Difference]: Without dead ends: 660 [2021-12-06 19:18:31,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:18:31,646 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 46 mSDsluCounter, 2771 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:31,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 3094 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:31,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-12-06 19:18:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 648. [2021-12-06 19:18:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 553 states have (on average 1.1952983725135624) internal successors, (661), 565 states have internal predecessors, (661), 47 states have call successors, (47), 33 states have call predecessors, (47), 47 states have return successors, (60), 49 states have call predecessors, (60), 43 states have call successors, (60) [2021-12-06 19:18:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 768 transitions. [2021-12-06 19:18:31,651 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 768 transitions. Word has length 57 [2021-12-06 19:18:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:31,651 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 768 transitions. [2021-12-06 19:18:31,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 768 transitions. [2021-12-06 19:18:31,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 19:18:31,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:31,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:31,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (109)] Ended with exit code 0 [2021-12-06 19:18:31,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:31,853 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1546270633, now seen corresponding path program 1 times [2021-12-06 19:18:31,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:31,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947289015] [2021-12-06 19:18:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:31,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:31,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:31,862 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:31,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2021-12-06 19:18:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:31,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:18:31,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:32,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:32,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:32,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947289015] [2021-12-06 19:18:32,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947289015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:32,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:32,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:18:32,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890109554] [2021-12-06 19:18:32,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:32,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:18:32,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:18:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:18:32,072 INFO L87 Difference]: Start difference. First operand 648 states and 768 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:32,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:32,167 INFO L93 Difference]: Finished difference Result 666 states and 785 transitions. [2021-12-06 19:18:32,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:18:32,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-12-06 19:18:32,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:32,168 INFO L225 Difference]: With dead ends: 666 [2021-12-06 19:18:32,168 INFO L226 Difference]: Without dead ends: 625 [2021-12-06 19:18:32,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:18:32,168 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 93 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:32,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 2286 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:18:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-06 19:18:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 568. [2021-12-06 19:18:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 480 states have (on average 1.2041666666666666) internal successors, (578), 489 states have internal predecessors, (578), 46 states have call successors, (46), 33 states have call predecessors, (46), 41 states have return successors, (54), 45 states have call predecessors, (54), 43 states have call successors, (54) [2021-12-06 19:18:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 678 transitions. [2021-12-06 19:18:32,173 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 678 transitions. Word has length 57 [2021-12-06 19:18:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:32,173 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 678 transitions. [2021-12-06 19:18:32,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 19:18:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 678 transitions. [2021-12-06 19:18:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:18:32,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:32,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:32,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (110)] Ended with exit code 0 [2021-12-06 19:18:32,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:32,374 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:32,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2021-12-06 19:18:32,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:32,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823635256] [2021-12-06 19:18:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:32,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:32,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:32,380 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:32,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2021-12-06 19:18:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:18:32,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:18:32,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:18:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:18:32,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:18:32,514 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:18:32,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823635256] [2021-12-06 19:18:32,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823635256] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:18:32,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:18:32,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:18:32,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052428802] [2021-12-06 19:18:32,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:18:32,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:18:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:18:32,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:18:32,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:32,515 INFO L87 Difference]: Start difference. First operand 568 states and 678 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:18:32,528 INFO L93 Difference]: Finished difference Result 696 states and 838 transitions. [2021-12-06 19:18:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:18:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2021-12-06 19:18:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:18:32,529 INFO L225 Difference]: With dead ends: 696 [2021-12-06 19:18:32,529 INFO L226 Difference]: Without dead ends: 696 [2021-12-06 19:18:32,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:18:32,529 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 245 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:18:32,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 817 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:18:32,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-12-06 19:18:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 410. [2021-12-06 19:18:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 351 states have (on average 1.188034188034188) internal successors, (417), 356 states have internal predecessors, (417), 31 states have call successors, (31), 22 states have call predecessors, (31), 27 states have return successors, (34), 31 states have call predecessors, (34), 28 states have call successors, (34) [2021-12-06 19:18:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 482 transitions. [2021-12-06 19:18:32,533 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 482 transitions. Word has length 58 [2021-12-06 19:18:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:18:32,533 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 482 transitions. [2021-12-06 19:18:32,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 19:18:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 482 transitions. [2021-12-06 19:18:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 19:18:32,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:18:32,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:32,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2021-12-06 19:18:32,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:32,735 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 19:18:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:18:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2021-12-06 19:18:32,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:18:32,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445874516] [2021-12-06 19:18:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:18:32,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:18:32,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:18:32,740 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:18:32,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2021-12-06 19:18:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:18:32,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:18:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:18:32,925 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 19:18:32,925 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:18:32,926 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-06 19:18:32,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-06 19:18:32,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (112)] Ended with exit code 0 [2021-12-06 19:18:33,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:18:33,136 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:18:33,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:18:33,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:18:33 BoogieIcfgContainer [2021-12-06 19:18:33,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:18:33,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:18:33,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:18:33,230 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:18:33,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:17:34" (3/4) ... [2021-12-06 19:18:33,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:18:33,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:18:33,233 INFO L158 Benchmark]: Toolchain (without parser) took 60085.84ms. Allocated memory was 62.9MB in the beginning and 109.1MB in the end (delta: 46.1MB). Free memory was 41.8MB in the beginning and 35.4MB in the end (delta: 6.4MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.55ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 27.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 27.6MB in the beginning and 69.0MB in the end (delta: -41.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: Boogie Preprocessor took 59.42ms. Allocated memory is still 90.2MB. Free memory was 69.0MB in the beginning and 63.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: RCFGBuilder took 875.52ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 56.6MB in the end (delta: 7.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: TraceAbstraction took 58677.91ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 56.1MB in the beginning and 35.4MB in the end (delta: 20.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 109.1MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:18:33,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.55ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 27.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 27.6MB in the beginning and 69.0MB in the end (delta: -41.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.42ms. Allocated memory is still 90.2MB. Free memory was 69.0MB in the beginning and 63.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 875.52ms. Allocated memory is still 90.2MB. Free memory was 63.9MB in the beginning and 56.6MB in the end (delta: 7.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 58677.91ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 56.1MB in the beginning and 35.4MB in the end (delta: 20.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 109.1MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 58.5s, OverallIterations: 111, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15149 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14932 mSDsluCounter, 334541 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274226 mSDsCounter, 659 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12792 IncrementalHoareTripleChecker+Invalid, 13451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 659 mSolverCounterUnsat, 60315 mSDtfsCounter, 12792 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5363 GetRequests, 4516 SyntacticMatches, 0 SemanticMatches, 847 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1062occurred in iteration=39, InterpolantAutomatonStates: 801, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 110 MinimizatonAttempts, 2668 StatesRemovedByMinimization, 75 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 5266 NumberOfCodeBlocks, 5266 NumberOfCodeBlocksAsserted, 111 NumberOfCheckSat, 5098 ConstructedInterpolants, 0 QuantifiedInterpolants, 13480 SizeOfPredicates, 362 NumberOfNonLiveVariables, 18865 ConjunctsInSsa, 789 ConjunctsInUnsatCore, 110 InterpolantComputations, 110 PerfectInterpolantSequences, 15/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 19:18:33,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fbe8c6b-b164-4a46-a36b-6929492818cf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample