./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg --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 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg --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 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:34:35,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:34:35,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:34:35,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:34:35,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:34:35,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:34:35,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:34:35,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:34:35,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:34:35,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:34:35,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:34:35,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:34:35,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:34:35,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:34:35,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:34:35,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:34:35,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:34:35,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:34:35,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:34:35,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:34:35,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:34:35,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:34:35,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:34:35,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:34:35,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:34:35,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:34:35,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:34:35,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:34:35,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:34:35,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:34:35,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:34:35,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:34:35,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:34:35,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:34:35,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:34:35,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:34:35,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:34:35,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:34:35,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:34:35,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:34:35,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:34:35,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:34:35,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:34:35,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:34:35,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:34:35,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:34:35,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:34:35,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:34:35,375 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:34:35,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:34:35,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:34:35,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:34:35,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:34:35,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:34:35,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:34:35,377 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:34:35,377 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:34:35,377 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:34:35,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:34:35,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:34:35,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:34:35,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:34:35,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:34:35,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:34:35,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:34:35,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:34:35,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:34:35,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:34:35,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:34:35,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:34:35,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:34:35,381 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-10-28 09:34:35,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:34:35,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:34:35,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:34:35,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:34:35,738 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:34:35,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 09:34:35,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/fe72c5aad/32b17baf2e0847558af6d4cbaea47db7/FLAGbe68f306e [2021-10-28 09:34:36,464 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:34:36,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 09:34:36,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/fe72c5aad/32b17baf2e0847558af6d4cbaea47db7/FLAGbe68f306e [2021-10-28 09:34:36,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/fe72c5aad/32b17baf2e0847558af6d4cbaea47db7 [2021-10-28 09:34:36,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:34:36,711 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:34:36,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:36,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:34:36,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:34:36,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:36" (1/1) ... [2021-10-28 09:34:36,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f67fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:36, skipping insertion in model container [2021-10-28 09:34:36,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:36" (1/1) ... [2021-10-28 09:34:36,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:34:36,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:34:37,050 WARN L228 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 09:34:37,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:37,320 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:34:37,336 WARN L228 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 09:34:37,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:37,473 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:34:37,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37 WrapperNode [2021-10-28 09:34:37,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:37,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:34:37,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:34:37,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:34:37,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:34:37,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:34:37,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:34:37,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:34:37,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (1/1) ... [2021-10-28 09:34:37,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:34:37,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:37,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:37,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:34:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:34:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:34:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:34:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 09:34:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 09:34:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-10-28 09:34:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-10-28 09:34:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2021-10-28 09:34:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2021-10-28 09:34:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2021-10-28 09:34:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-10-28 09:34:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-10-28 09:34:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2021-10-28 09:34:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2021-10-28 09:34:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 09:34:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 09:34:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 09:34:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 09:34:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 09:34:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-10-28 09:34:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 09:34:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:34:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:34:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:34:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:34:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 09:34:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:34:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 09:34:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-10-28 09:34:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-10-28 09:34:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2021-10-28 09:34:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-10-28 09:34:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2021-10-28 09:34:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2021-10-28 09:34:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-10-28 09:34:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2021-10-28 09:34:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-10-28 09:34:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2021-10-28 09:34:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 09:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 09:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 09:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-10-28 09:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 09:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 09:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 09:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 09:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2021-10-28 09:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2021-10-28 09:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 09:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 09:34:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:34:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:34:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:34:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:34:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:34:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:34:38,347 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,470 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-10-28 09:34:38,484 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-10-28 09:34:38,490 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,539 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-10-28 09:34:38,539 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-10-28 09:34:38,582 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,602 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 09:34:38,602 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 09:34:38,660 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,696 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-10-28 09:34:38,697 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2021-10-28 09:34:38,697 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-10-28 09:34:38,702 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,859 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2021-10-28 09:34:38,860 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2021-10-28 09:34:38,861 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,887 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 09:34:38,887 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 09:34:38,931 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:38,956 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-10-28 09:34:38,957 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-10-28 09:34:38,964 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:39,125 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-10-28 09:34:39,126 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-10-28 09:34:39,136 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:34:39,142 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 09:34:39,142 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 09:34:39,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:34:39,201 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:34:39,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:39 BoogieIcfgContainer [2021-10-28 09:34:39,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:34:39,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:34:39,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:34:39,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:34:39,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:34:36" (1/3) ... [2021-10-28 09:34:39,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9f6f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:39, skipping insertion in model container [2021-10-28 09:34:39,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:37" (2/3) ... [2021-10-28 09:34:39,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9f6f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:39, skipping insertion in model container [2021-10-28 09:34:39,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:39" (3/3) ... [2021-10-28 09:34:39,226 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-10-28 09:34:39,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:34:39,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 09:34:39,355 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:34:39,364 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 [2021-10-28 09:34:39,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 09:34:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2021-10-28 09:34:39,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:34:39,411 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:39,412 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:39,412 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 633313405, now seen corresponding path program 1 times [2021-10-28 09:34:39,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:39,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458552813] [2021-10-28 09:34:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:39,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:39,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:39,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458552813] [2021-10-28 09:34:39,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458552813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:39,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:39,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:34:39,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906725218] [2021-10-28 09:34:39,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:34:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:34:39,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:34:39,901 INFO L87 Difference]: Start difference. First operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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) [2021-10-28 09:34:42,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:42,451 INFO L93 Difference]: Finished difference Result 671 states and 1030 transitions. [2021-10-28 09:34:42,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:34:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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 15 [2021-10-28 09:34:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:42,481 INFO L225 Difference]: With dead ends: 671 [2021-10-28 09:34:42,481 INFO L226 Difference]: Without dead ends: 665 [2021-10-28 09:34:42,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:34:42,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-10-28 09:34:42,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2021-10-28 09:34:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4603174603174602) internal successors, (552), 397 states have internal predecessors, (552), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 09:34:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 741 transitions. [2021-10-28 09:34:42,588 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 741 transitions. Word has length 15 [2021-10-28 09:34:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:42,588 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 741 transitions. [2021-10-28 09:34:42,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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) [2021-10-28 09:34:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 741 transitions. [2021-10-28 09:34:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:34:42,590 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:42,590 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:42,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:34:42,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:42,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1738610777, now seen corresponding path program 1 times [2021-10-28 09:34:42,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:42,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897234371] [2021-10-28 09:34:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:42,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:42,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:42,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897234371] [2021-10-28 09:34:42,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897234371] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:42,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:42,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:34:42,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157886283] [2021-10-28 09:34:42,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:34:42,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:34:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:34:42,877 INFO L87 Difference]: Start difference. First operand 509 states and 741 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 09:34:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:45,488 INFO L93 Difference]: Finished difference Result 670 states and 1022 transitions. [2021-10-28 09:34:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:34:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 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 20 [2021-10-28 09:34:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:45,503 INFO L225 Difference]: With dead ends: 670 [2021-10-28 09:34:45,504 INFO L226 Difference]: Without dead ends: 665 [2021-10-28 09:34:45,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-10-28 09:34:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2021-10-28 09:34:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 09:34:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2021-10-28 09:34:45,583 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2021-10-28 09:34:45,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:45,584 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2021-10-28 09:34:45,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 09:34:45,584 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2021-10-28 09:34:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:34:45,586 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:45,587 INFO L513 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] [2021-10-28 09:34:45,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:34:45,587 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1016281706, now seen corresponding path program 1 times [2021-10-28 09:34:45,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:45,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441042759] [2021-10-28 09:34:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:45,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:34:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:45,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:45,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441042759] [2021-10-28 09:34:45,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441042759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:45,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:45,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:34:45,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450830997] [2021-10-28 09:34:45,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:34:45,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:45,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:34:45,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:45,876 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:48,141 INFO L93 Difference]: Finished difference Result 847 states and 1261 transitions. [2021-10-28 09:34:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:34:48,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 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 25 [2021-10-28 09:34:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:48,149 INFO L225 Difference]: With dead ends: 847 [2021-10-28 09:34:48,149 INFO L226 Difference]: Without dead ends: 846 [2021-10-28 09:34:48,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:34:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-10-28 09:34:48,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2021-10-28 09:34:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 502 states have (on average 1.408366533864542) internal successors, (707), 510 states have internal predecessors, (707), 112 states have call successors, (112), 40 states have call predecessors, (112), 49 states have return successors, (145), 119 states have call predecessors, (145), 99 states have call successors, (145) [2021-10-28 09:34:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2021-10-28 09:34:48,213 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2021-10-28 09:34:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:48,214 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2021-10-28 09:34:48,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2021-10-28 09:34:48,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 09:34:48,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:48,227 INFO L513 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] [2021-10-28 09:34:48,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:34:48,228 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1367852756, now seen corresponding path program 1 times [2021-10-28 09:34:48,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:48,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378919668] [2021-10-28 09:34:48,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:48,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:48,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:48,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:34:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:48,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:48,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378919668] [2021-10-28 09:34:48,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378919668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:48,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:48,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:34:48,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640557934] [2021-10-28 09:34:48,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:34:48,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:48,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:34:48,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:48,531 INFO L87 Difference]: Start difference. First operand 664 states and 964 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:51,283 INFO L93 Difference]: Finished difference Result 970 states and 1415 transitions. [2021-10-28 09:34:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:34:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-10-28 09:34:51,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:51,293 INFO L225 Difference]: With dead ends: 970 [2021-10-28 09:34:51,293 INFO L226 Difference]: Without dead ends: 970 [2021-10-28 09:34:51,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:34:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2021-10-28 09:34:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2021-10-28 09:34:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 611 states have (on average 1.4042553191489362) internal successors, (858), 615 states have internal predecessors, (858), 114 states have call successors, (114), 46 states have call predecessors, (114), 63 states have return successors, (163), 130 states have call predecessors, (163), 104 states have call successors, (163) [2021-10-28 09:34:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2021-10-28 09:34:51,347 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2021-10-28 09:34:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:51,347 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2021-10-28 09:34:51,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2021-10-28 09:34:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:34:51,351 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:51,351 INFO L513 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] [2021-10-28 09:34:51,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:34:51,352 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:51,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1062919399, now seen corresponding path program 1 times [2021-10-28 09:34:51,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:51,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711657735] [2021-10-28 09:34:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:51,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:34:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:51,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:51,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711657735] [2021-10-28 09:34:51,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711657735] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:51,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:51,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:34:51,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698065741] [2021-10-28 09:34:51,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:34:51,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:34:51,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:51,594 INFO L87 Difference]: Start difference. First operand 789 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:54,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:54,844 INFO L93 Difference]: Finished difference Result 1344 states and 2031 transitions. [2021-10-28 09:34:54,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:34:54,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-10-28 09:34:54,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:54,855 INFO L225 Difference]: With dead ends: 1344 [2021-10-28 09:34:54,855 INFO L226 Difference]: Without dead ends: 1344 [2021-10-28 09:34:54,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:34:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2021-10-28 09:34:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2021-10-28 09:34:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 708 states have (on average 1.4138418079096045) internal successors, (1001), 711 states have internal predecessors, (1001), 127 states have call successors, (127), 54 states have call predecessors, (127), 71 states have return successors, (220), 144 states have call predecessors, (220), 117 states have call successors, (220) [2021-10-28 09:34:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2021-10-28 09:34:54,906 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2021-10-28 09:34:54,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:54,906 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2021-10-28 09:34:54,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:34:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2021-10-28 09:34:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 09:34:54,908 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:54,909 INFO L513 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] [2021-10-28 09:34:54,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:34:54,909 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1170843407, now seen corresponding path program 1 times [2021-10-28 09:34:54,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:54,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221011131] [2021-10-28 09:34:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:54,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:34:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:55,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:55,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221011131] [2021-10-28 09:34:55,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221011131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:55,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:55,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:34:55,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741749467] [2021-10-28 09:34:55,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:34:55,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:34:55,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:34:55,215 INFO L87 Difference]: Start difference. First operand 907 states and 1348 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:34:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:58,287 INFO L93 Difference]: Finished difference Result 1046 states and 1583 transitions. [2021-10-28 09:34:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:34:58,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2021-10-28 09:34:58,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:34:58,300 INFO L225 Difference]: With dead ends: 1046 [2021-10-28 09:34:58,301 INFO L226 Difference]: Without dead ends: 1046 [2021-10-28 09:34:58,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:34:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-10-28 09:34:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2021-10-28 09:34:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 649 states have (on average 1.399075500770416) internal successors, (908), 653 states have internal predecessors, (908), 118 states have call successors, (118), 50 states have call predecessors, (118), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2021-10-28 09:34:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2021-10-28 09:34:58,341 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2021-10-28 09:34:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:34:58,342 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2021-10-28 09:34:58,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:34:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2021-10-28 09:34:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 09:34:58,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:34:58,345 INFO L513 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] [2021-10-28 09:34:58,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:34:58,346 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:34:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1821153895, now seen corresponding path program 1 times [2021-10-28 09:34:58,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:58,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538873582] [2021-10-28 09:34:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:58,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:34:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:34:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:34:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:58,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:58,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538873582] [2021-10-28 09:34:58,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538873582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:58,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:58,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:34:58,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050780224] [2021-10-28 09:34:58,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:34:58,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:58,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:34:58,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:58,597 INFO L87 Difference]: Start difference. First operand 835 states and 1203 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:01,147 INFO L93 Difference]: Finished difference Result 961 states and 1420 transitions. [2021-10-28 09:35:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:35:01,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-10-28 09:35:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:01,154 INFO L225 Difference]: With dead ends: 961 [2021-10-28 09:35:01,154 INFO L226 Difference]: Without dead ends: 961 [2021-10-28 09:35:01,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-10-28 09:35:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2021-10-28 09:35:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 649 states have (on average 1.3959938366718028) internal successors, (906), 652 states have internal predecessors, (906), 117 states have call successors, (117), 50 states have call predecessors, (117), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2021-10-28 09:35:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2021-10-28 09:35:01,191 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2021-10-28 09:35:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:01,192 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2021-10-28 09:35:01,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2021-10-28 09:35:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 09:35:01,199 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:01,200 INFO L513 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] [2021-10-28 09:35:01,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:35:01,200 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:01,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:01,201 INFO L85 PathProgramCache]: Analyzing trace with hash -591738262, now seen corresponding path program 1 times [2021-10-28 09:35:01,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:01,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865533944] [2021-10-28 09:35:01,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:01,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:01,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:01,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:01,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865533944] [2021-10-28 09:35:01,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865533944] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:01,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:01,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:35:01,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285978993] [2021-10-28 09:35:01,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:01,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:01,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:01,445 INFO L87 Difference]: Start difference. First operand 834 states and 1200 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:04,365 INFO L93 Difference]: Finished difference Result 999 states and 1436 transitions. [2021-10-28 09:35:04,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:35:04,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-10-28 09:35:04,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:04,372 INFO L225 Difference]: With dead ends: 999 [2021-10-28 09:35:04,372 INFO L226 Difference]: Without dead ends: 999 [2021-10-28 09:35:04,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-10-28 09:35:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2021-10-28 09:35:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 571 states have (on average 1.3870402802101576) internal successors, (792), 575 states have internal predecessors, (792), 106 states have call successors, (106), 45 states have call predecessors, (106), 58 states have return successors, (131), 118 states have call predecessors, (131), 97 states have call successors, (131) [2021-10-28 09:35:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2021-10-28 09:35:04,403 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2021-10-28 09:35:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:04,403 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2021-10-28 09:35:04,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2021-10-28 09:35:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:35:04,406 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:04,406 INFO L513 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] [2021-10-28 09:35:04,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:35:04,407 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1528077449, now seen corresponding path program 1 times [2021-10-28 09:35:04,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:04,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235969144] [2021-10-28 09:35:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:04,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:04,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:04,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235969144] [2021-10-28 09:35:04,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235969144] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:04,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:04,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:35:04,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278797037] [2021-10-28 09:35:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:04,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:04,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:04,613 INFO L87 Difference]: Start difference. First operand 736 states and 1029 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:06,024 INFO L93 Difference]: Finished difference Result 959 states and 1380 transitions. [2021-10-28 09:35:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:35:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-10-28 09:35:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:06,031 INFO L225 Difference]: With dead ends: 959 [2021-10-28 09:35:06,032 INFO L226 Difference]: Without dead ends: 959 [2021-10-28 09:35:06,037 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-10-28 09:35:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2021-10-28 09:35:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3983193277310924) internal successors, (832), 608 states have internal predecessors, (832), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2021-10-28 09:35:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2021-10-28 09:35:06,066 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2021-10-28 09:35:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:06,066 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2021-10-28 09:35:06,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:35:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2021-10-28 09:35:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 09:35:06,069 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:06,069 INFO L513 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] [2021-10-28 09:35:06,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:35:06,071 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -621720949, now seen corresponding path program 1 times [2021-10-28 09:35:06,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:06,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256542816] [2021-10-28 09:35:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:06,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-10-28 09:35:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:06,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:06,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256542816] [2021-10-28 09:35:06,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256542816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:06,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:06,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:35:06,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803295040] [2021-10-28 09:35:06,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:06,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:06,293 INFO L87 Difference]: Start difference. First operand 762 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:35:08,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:08,421 INFO L93 Difference]: Finished difference Result 942 states and 1357 transitions. [2021-10-28 09:35:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:08,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2021-10-28 09:35:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:08,427 INFO L225 Difference]: With dead ends: 942 [2021-10-28 09:35:08,427 INFO L226 Difference]: Without dead ends: 942 [2021-10-28 09:35:08,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:08,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2021-10-28 09:35:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2021-10-28 09:35:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3966386554621848) internal successors, (831), 608 states have internal predecessors, (831), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2021-10-28 09:35:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2021-10-28 09:35:08,457 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2021-10-28 09:35:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:08,458 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2021-10-28 09:35:08,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:35:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2021-10-28 09:35:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-28 09:35:08,461 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:08,461 INFO L513 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] [2021-10-28 09:35:08,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:35:08,462 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1459738846, now seen corresponding path program 1 times [2021-10-28 09:35:08,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:08,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348940478] [2021-10-28 09:35:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:08,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-10-28 09:35:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:08,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:08,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348940478] [2021-10-28 09:35:08,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348940478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:08,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:08,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:35:08,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842760354] [2021-10-28 09:35:08,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:08,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:08,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:08,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:08,644 INFO L87 Difference]: Start difference. First operand 762 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:35:09,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:09,883 INFO L93 Difference]: Finished difference Result 897 states and 1299 transitions. [2021-10-28 09:35:09,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:09,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-10-28 09:35:09,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:09,890 INFO L225 Difference]: With dead ends: 897 [2021-10-28 09:35:09,890 INFO L226 Difference]: Without dead ends: 897 [2021-10-28 09:35:09,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-10-28 09:35:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2021-10-28 09:35:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 588 states have (on average 1.3979591836734695) internal successors, (822), 601 states have internal predecessors, (822), 106 states have call successors, (106), 46 states have call predecessors, (106), 56 states have return successors, (122), 108 states have call predecessors, (122), 98 states have call successors, (122) [2021-10-28 09:35:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2021-10-28 09:35:09,919 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2021-10-28 09:35:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:09,919 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2021-10-28 09:35:09,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:35:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2021-10-28 09:35:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 09:35:09,922 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:09,923 INFO L513 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] [2021-10-28 09:35:09,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:35:09,923 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:09,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1711019189, now seen corresponding path program 1 times [2021-10-28 09:35:09,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:09,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120883574] [2021-10-28 09:35:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:09,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:10,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:10,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120883574] [2021-10-28 09:35:10,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120883574] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:10,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:10,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:35:10,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537986439] [2021-10-28 09:35:10,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:35:10,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:35:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:10,214 INFO L87 Difference]: Start difference. First operand 751 states and 1050 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:35:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:13,169 INFO L93 Difference]: Finished difference Result 1006 states and 1439 transitions. [2021-10-28 09:35:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:35:13,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2021-10-28 09:35:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:13,176 INFO L225 Difference]: With dead ends: 1006 [2021-10-28 09:35:13,176 INFO L226 Difference]: Without dead ends: 1006 [2021-10-28 09:35:13,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:35:13,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-28 09:35:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2021-10-28 09:35:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3964686998394864) internal successors, (870), 635 states have internal predecessors, (870), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 09:35:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2021-10-28 09:35:13,208 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2021-10-28 09:35:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:13,209 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2021-10-28 09:35:13,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:35:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2021-10-28 09:35:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:35:13,212 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:13,212 INFO L513 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] [2021-10-28 09:35:13,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:35:13,213 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash -17559376, now seen corresponding path program 1 times [2021-10-28 09:35:13,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:13,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312747642] [2021-10-28 09:35:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:13,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:13,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:13,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312747642] [2021-10-28 09:35:13,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312747642] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:13,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:13,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:35:13,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607011729] [2021-10-28 09:35:13,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:13,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:13,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:13,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:13,434 INFO L87 Difference]: Start difference. First operand 794 states and 1111 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:15,453 INFO L93 Difference]: Finished difference Result 927 states and 1338 transitions. [2021-10-28 09:35:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:35:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 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 50 [2021-10-28 09:35:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:15,458 INFO L225 Difference]: With dead ends: 927 [2021-10-28 09:35:15,458 INFO L226 Difference]: Without dead ends: 927 [2021-10-28 09:35:15,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-10-28 09:35:15,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 797. [2021-10-28 09:35:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 626 states have (on average 1.3961661341853036) internal successors, (874), 638 states have internal predecessors, (874), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 09:35:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2021-10-28 09:35:15,487 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2021-10-28 09:35:15,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:15,487 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2021-10-28 09:35:15,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2021-10-28 09:35:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:35:15,491 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:15,491 INFO L513 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] [2021-10-28 09:35:15,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:35:15,491 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2011704082, now seen corresponding path program 1 times [2021-10-28 09:35:15,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:15,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62405182] [2021-10-28 09:35:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:15,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:15,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:15,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62405182] [2021-10-28 09:35:15,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62405182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:15,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:15,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:35:15,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508587405] [2021-10-28 09:35:15,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:35:15,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:15,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:35:15,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:15,758 INFO L87 Difference]: Start difference. First operand 797 states and 1115 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:35:18,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:18,502 INFO L93 Difference]: Finished difference Result 914 states and 1320 transitions. [2021-10-28 09:35:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:18,503 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2021-10-28 09:35:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:18,508 INFO L225 Difference]: With dead ends: 914 [2021-10-28 09:35:18,508 INFO L226 Difference]: Without dead ends: 914 [2021-10-28 09:35:18,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:35:18,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-28 09:35:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2021-10-28 09:35:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.391304347826087) internal successors, (864), 633 states have internal predecessors, (864), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 09:35:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2021-10-28 09:35:18,537 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2021-10-28 09:35:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:18,538 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2021-10-28 09:35:18,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:35:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2021-10-28 09:35:18,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:35:18,541 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:18,541 INFO L513 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] [2021-10-28 09:35:18,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:35:18,542 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:18,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:18,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1865011280, now seen corresponding path program 1 times [2021-10-28 09:35:18,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:18,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037229638] [2021-10-28 09:35:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:18,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:18,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037229638] [2021-10-28 09:35:18,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037229638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:18,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:18,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:35:18,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468721109] [2021-10-28 09:35:18,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:18,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:18,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:18,745 INFO L87 Difference]: Start difference. First operand 792 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:20,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:20,924 INFO L93 Difference]: Finished difference Result 1074 states and 1532 transitions. [2021-10-28 09:35:20,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:35:20,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 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 50 [2021-10-28 09:35:20,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:20,932 INFO L225 Difference]: With dead ends: 1074 [2021-10-28 09:35:20,932 INFO L226 Difference]: Without dead ends: 1074 [2021-10-28 09:35:20,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:20,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-10-28 09:35:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2021-10-28 09:35:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3725490196078431) internal successors, (910), 677 states have internal predecessors, (910), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-28 09:35:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2021-10-28 09:35:20,961 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2021-10-28 09:35:20,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:20,962 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2021-10-28 09:35:20,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2021-10-28 09:35:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 09:35:20,965 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:20,965 INFO L513 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] [2021-10-28 09:35:20,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 09:35:20,966 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:20,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash -540904097, now seen corresponding path program 1 times [2021-10-28 09:35:20,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:20,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698442721] [2021-10-28 09:35:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:20,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:35:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:21,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:21,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698442721] [2021-10-28 09:35:21,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698442721] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:21,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:21,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:35:21,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652779803] [2021-10-28 09:35:21,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:35:21,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:21,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:35:21,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:21,196 INFO L87 Difference]: Start difference. First operand 848 states and 1165 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:22,994 INFO L93 Difference]: Finished difference Result 991 states and 1404 transitions. [2021-10-28 09:35:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-10-28 09:35:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:23,000 INFO L225 Difference]: With dead ends: 991 [2021-10-28 09:35:23,000 INFO L226 Difference]: Without dead ends: 991 [2021-10-28 09:35:23,001 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2021-10-28 09:35:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 867. [2021-10-28 09:35:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 679 states have (on average 1.369661266568483) internal successors, (930), 694 states have internal predecessors, (930), 113 states have call successors, (113), 52 states have call predecessors, (113), 74 states have return successors, (145), 128 states have call predecessors, (145), 105 states have call successors, (145) [2021-10-28 09:35:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1188 transitions. [2021-10-28 09:35:23,031 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1188 transitions. Word has length 52 [2021-10-28 09:35:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:23,031 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1188 transitions. [2021-10-28 09:35:23,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1188 transitions. [2021-10-28 09:35:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:35:23,035 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:23,035 INFO L513 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] [2021-10-28 09:35:23,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 09:35:23,036 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1037319808, now seen corresponding path program 1 times [2021-10-28 09:35:23,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:23,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114071381] [2021-10-28 09:35:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:23,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-10-28 09:35:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-10-28 09:35:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:23,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:23,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114071381] [2021-10-28 09:35:23,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114071381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:23,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:23,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:35:23,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429388057] [2021-10-28 09:35:23,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:23,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:23,231 INFO L87 Difference]: Start difference. First operand 867 states and 1188 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:25,963 INFO L93 Difference]: Finished difference Result 956 states and 1361 transitions. [2021-10-28 09:35:25,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:35:25,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2021-10-28 09:35:25,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:25,967 INFO L225 Difference]: With dead ends: 956 [2021-10-28 09:35:25,967 INFO L226 Difference]: Without dead ends: 956 [2021-10-28 09:35:25,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2021-10-28 09:35:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 836. [2021-10-28 09:35:25,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 655 states have (on average 1.369465648854962) internal successors, (897), 668 states have internal predecessors, (897), 111 states have call successors, (111), 51 states have call predecessors, (111), 69 states have return successors, (140), 123 states have call predecessors, (140), 104 states have call successors, (140) [2021-10-28 09:35:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2021-10-28 09:35:25,995 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 54 [2021-10-28 09:35:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:25,995 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2021-10-28 09:35:25,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2021-10-28 09:35:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:35:25,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:25,999 INFO L513 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] [2021-10-28 09:35:25,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 09:35:25,999 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:25,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1536910814, now seen corresponding path program 1 times [2021-10-28 09:35:26,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:26,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202379565] [2021-10-28 09:35:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:26,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:26,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:26,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202379565] [2021-10-28 09:35:26,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202379565] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:26,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:26,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:35:26,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852986541] [2021-10-28 09:35:26,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:35:26,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:35:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:26,245 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:28,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:28,720 INFO L93 Difference]: Finished difference Result 968 states and 1375 transitions. [2021-10-28 09:35:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:35:28,721 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-10-28 09:35:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:28,724 INFO L225 Difference]: With dead ends: 968 [2021-10-28 09:35:28,724 INFO L226 Difference]: Without dead ends: 967 [2021-10-28 09:35:28,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2021-10-28 09:35:28,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2021-10-28 09:35:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 661 states have (on average 1.367624810892587) internal successors, (904), 675 states have internal predecessors, (904), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 09:35:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1157 transitions. [2021-10-28 09:35:28,756 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1157 transitions. Word has length 51 [2021-10-28 09:35:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:28,757 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1157 transitions. [2021-10-28 09:35:28,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1157 transitions. [2021-10-28 09:35:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:35:28,761 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:28,761 INFO L513 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] [2021-10-28 09:35:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 09:35:28,762 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1537187644, now seen corresponding path program 1 times [2021-10-28 09:35:28,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:28,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447515907] [2021-10-28 09:35:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:28,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:29,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:29,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447515907] [2021-10-28 09:35:29,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447515907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:29,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:29,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:35:29,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536789444] [2021-10-28 09:35:29,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:35:29,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:35:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:29,050 INFO L87 Difference]: Start difference. First operand 843 states and 1157 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:31,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:31,563 INFO L93 Difference]: Finished difference Result 983 states and 1391 transitions. [2021-10-28 09:35:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:31,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-10-28 09:35:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:31,570 INFO L225 Difference]: With dead ends: 983 [2021-10-28 09:35:31,570 INFO L226 Difference]: Without dead ends: 962 [2021-10-28 09:35:31,571 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:31,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-10-28 09:35:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 842. [2021-10-28 09:35:31,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3666666666666667) internal successors, (902), 674 states have internal predecessors, (902), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 09:35:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2021-10-28 09:35:31,600 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2021-10-28 09:35:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:31,600 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2021-10-28 09:35:31,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 09:35:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2021-10-28 09:35:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 09:35:31,604 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:31,604 INFO L513 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] [2021-10-28 09:35:31,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 09:35:31,604 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:31,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash 855429365, now seen corresponding path program 1 times [2021-10-28 09:35:31,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:31,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321307521] [2021-10-28 09:35:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:31,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:35:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:31,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:31,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321307521] [2021-10-28 09:35:31,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321307521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:31,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:31,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:35:31,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349257295] [2021-10-28 09:35:31,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:35:31,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:31,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:35:31,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:31,964 INFO L87 Difference]: Start difference. First operand 842 states and 1155 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:35,249 INFO L93 Difference]: Finished difference Result 968 states and 1372 transitions. [2021-10-28 09:35:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:35,249 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2021-10-28 09:35:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:35,254 INFO L225 Difference]: With dead ends: 968 [2021-10-28 09:35:35,254 INFO L226 Difference]: Without dead ends: 968 [2021-10-28 09:35:35,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:35:35,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-10-28 09:35:35,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2021-10-28 09:35:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3651515151515152) internal successors, (901), 674 states have internal predecessors, (901), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 09:35:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2021-10-28 09:35:35,283 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2021-10-28 09:35:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:35,283 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2021-10-28 09:35:35,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2021-10-28 09:35:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 09:35:35,287 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:35,287 INFO L513 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] [2021-10-28 09:35:35,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 09:35:35,287 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:35,288 INFO L85 PathProgramCache]: Analyzing trace with hash -353388327, now seen corresponding path program 1 times [2021-10-28 09:35:35,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:35,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135405315] [2021-10-28 09:35:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:35,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:35:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:35,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:35,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135405315] [2021-10-28 09:35:35,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135405315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:35,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:35,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:35:35,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914251835] [2021-10-28 09:35:35,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:35:35,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:35:35,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:35,542 INFO L87 Difference]: Start difference. First operand 842 states and 1154 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:35:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:38,570 INFO L93 Difference]: Finished difference Result 975 states and 1378 transitions. [2021-10-28 09:35:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:35:38,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-10-28 09:35:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:38,576 INFO L225 Difference]: With dead ends: 975 [2021-10-28 09:35:38,576 INFO L226 Difference]: Without dead ends: 943 [2021-10-28 09:35:38,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:35:38,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-10-28 09:35:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2021-10-28 09:35:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3746081504702194) internal successors, (877), 651 states have internal predecessors, (877), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2021-10-28 09:35:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2021-10-28 09:35:38,602 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2021-10-28 09:35:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:38,602 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2021-10-28 09:35:38,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:35:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2021-10-28 09:35:38,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:35:38,605 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:38,606 INFO L513 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] [2021-10-28 09:35:38,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 09:35:38,606 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:38,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:38,607 INFO L85 PathProgramCache]: Analyzing trace with hash 116484228, now seen corresponding path program 1 times [2021-10-28 09:35:38,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:38,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898851950] [2021-10-28 09:35:38,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:38,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:35:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:38,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:38,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898851950] [2021-10-28 09:35:38,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898851950] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:38,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:38,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:35:38,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822110589] [2021-10-28 09:35:38,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:35:38,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:35:38,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:38,946 INFO L87 Difference]: Start difference. First operand 815 states and 1124 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:42,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:42,404 INFO L93 Difference]: Finished difference Result 939 states and 1339 transitions. [2021-10-28 09:35:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2021-10-28 09:35:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:42,410 INFO L225 Difference]: With dead ends: 939 [2021-10-28 09:35:42,410 INFO L226 Difference]: Without dead ends: 939 [2021-10-28 09:35:42,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:35:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2021-10-28 09:35:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2021-10-28 09:35:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3730407523510972) internal successors, (876), 651 states have internal predecessors, (876), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2021-10-28 09:35:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2021-10-28 09:35:42,445 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2021-10-28 09:35:42,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:42,446 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2021-10-28 09:35:42,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2021-10-28 09:35:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:35:42,449 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:42,449 INFO L513 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] [2021-10-28 09:35:42,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 09:35:42,450 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:42,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash -371811202, now seen corresponding path program 1 times [2021-10-28 09:35:42,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:42,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814295808] [2021-10-28 09:35:42,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:42,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:35:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:42,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:42,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814295808] [2021-10-28 09:35:42,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814295808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:42,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:42,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:35:42,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210371277] [2021-10-28 09:35:42,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:35:42,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:42,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:35:42,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:42,756 INFO L87 Difference]: Start difference. First operand 815 states and 1123 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:45,964 INFO L93 Difference]: Finished difference Result 963 states and 1369 transitions. [2021-10-28 09:35:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:35:45,965 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-10-28 09:35:45,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:45,969 INFO L225 Difference]: With dead ends: 963 [2021-10-28 09:35:45,969 INFO L226 Difference]: Without dead ends: 926 [2021-10-28 09:35:45,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:35:45,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-28 09:35:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2021-10-28 09:35:45,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 644 states have internal predecessors, (856), 107 states have call successors, (107), 49 states have call predecessors, (107), 67 states have return successors, (136), 119 states have call predecessors, (136), 100 states have call successors, (136) [2021-10-28 09:35:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2021-10-28 09:35:45,998 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2021-10-28 09:35:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:45,998 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2021-10-28 09:35:45,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2021-10-28 09:35:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:35:46,001 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:46,002 INFO L513 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] [2021-10-28 09:35:46,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 09:35:46,002 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash 149703456, now seen corresponding path program 1 times [2021-10-28 09:35:46,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:46,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061587602] [2021-10-28 09:35:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:46,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 09:35:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:35:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:46,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:46,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061587602] [2021-10-28 09:35:46,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061587602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:46,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:46,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:35:46,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691274430] [2021-10-28 09:35:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:35:46,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:35:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:46,306 INFO L87 Difference]: Start difference. First operand 806 states and 1099 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:49,520 INFO L93 Difference]: Finished difference Result 939 states and 1323 transitions. [2021-10-28 09:35:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:35:49,521 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-10-28 09:35:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:49,525 INFO L225 Difference]: With dead ends: 939 [2021-10-28 09:35:49,525 INFO L226 Difference]: Without dead ends: 924 [2021-10-28 09:35:49,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-10-28 09:35:49,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2021-10-28 09:35:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 643 states have internal predecessors, (854), 106 states have call successors, (106), 49 states have call predecessors, (106), 67 states have return successors, (135), 118 states have call predecessors, (135), 99 states have call successors, (135) [2021-10-28 09:35:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2021-10-28 09:35:49,552 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2021-10-28 09:35:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:49,552 INFO L470 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2021-10-28 09:35:49,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2021-10-28 09:35:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:35:49,556 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:49,556 INFO L513 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] [2021-10-28 09:35:49,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 09:35:49,556 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:49,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1617706055, now seen corresponding path program 1 times [2021-10-28 09:35:49,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:49,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127039873] [2021-10-28 09:35:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:49,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 09:35:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:35:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:49,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:49,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127039873] [2021-10-28 09:35:49,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127039873] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:49,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:49,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:35:49,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508647316] [2021-10-28 09:35:49,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:35:49,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:49,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:35:49,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:49,865 INFO L87 Difference]: Start difference. First operand 804 states and 1095 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:53,052 INFO L93 Difference]: Finished difference Result 934 states and 1316 transitions. [2021-10-28 09:35:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:35:53,052 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-10-28 09:35:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:53,056 INFO L225 Difference]: With dead ends: 934 [2021-10-28 09:35:53,056 INFO L226 Difference]: Without dead ends: 919 [2021-10-28 09:35:53,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-10-28 09:35:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2021-10-28 09:35:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.3556618819776713) internal successors, (850), 640 states have internal predecessors, (850), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2021-10-28 09:35:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2021-10-28 09:35:53,078 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2021-10-28 09:35:53,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:53,079 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2021-10-28 09:35:53,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:35:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2021-10-28 09:35:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:35:53,082 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:53,082 INFO L513 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] [2021-10-28 09:35:53,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-28 09:35:53,083 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash -29735584, now seen corresponding path program 1 times [2021-10-28 09:35:53,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:53,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625627232] [2021-10-28 09:35:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:53,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:35:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:35:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:35:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:53,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:53,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625627232] [2021-10-28 09:35:53,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625627232] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:53,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:53,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:35:53,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756760000] [2021-10-28 09:35:53,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:35:53,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:53,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:35:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:53,344 INFO L87 Difference]: Start difference. First operand 799 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:56,098 INFO L93 Difference]: Finished difference Result 941 states and 1319 transitions. [2021-10-28 09:35:56,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:35:56,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2021-10-28 09:35:56,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:56,102 INFO L225 Difference]: With dead ends: 941 [2021-10-28 09:35:56,102 INFO L226 Difference]: Without dead ends: 941 [2021-10-28 09:35:56,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:56,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-10-28 09:35:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2021-10-28 09:35:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.354066985645933) internal successors, (849), 640 states have internal predecessors, (849), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2021-10-28 09:35:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2021-10-28 09:35:56,125 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2021-10-28 09:35:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:56,125 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2021-10-28 09:35:56,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:35:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2021-10-28 09:35:56,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:35:56,129 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:56,129 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:35:56,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 09:35:56,130 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:35:56,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash 961876664, now seen corresponding path program 1 times [2021-10-28 09:35:56,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:56,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464092623] [2021-10-28 09:35:56,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:56,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:35:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:35:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:35:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-10-28 09:35:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-10-28 09:35:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:35:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 09:35:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:56,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:56,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464092623] [2021-10-28 09:35:56,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464092623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:56,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775506294] [2021-10-28 09:35:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:56,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:56,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:56,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:56,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:35:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:56,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:35:56,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:57,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775506294] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:57,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:57,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2021-10-28 09:35:57,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967333538] [2021-10-28 09:35:57,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:35:57,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:35:57,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:57,262 INFO L87 Difference]: Start difference. First operand 799 states and 1087 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2021-10-28 09:36:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:00,731 INFO L93 Difference]: Finished difference Result 1179 states and 1630 transitions. [2021-10-28 09:36:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:36:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 74 [2021-10-28 09:36:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:00,737 INFO L225 Difference]: With dead ends: 1179 [2021-10-28 09:36:00,737 INFO L226 Difference]: Without dead ends: 1179 [2021-10-28 09:36:00,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:36:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-10-28 09:36:00,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 878. [2021-10-28 09:36:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 691 states have (on average 1.3429811866859624) internal successors, (928), 703 states have internal predecessors, (928), 109 states have call successors, (109), 55 states have call predecessors, (109), 77 states have return successors, (144), 126 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 09:36:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1181 transitions. [2021-10-28 09:36:00,763 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1181 transitions. Word has length 74 [2021-10-28 09:36:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:00,764 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1181 transitions. [2021-10-28 09:36:00,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2021-10-28 09:36:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1181 transitions. [2021-10-28 09:36:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 09:36:00,767 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:00,767 INFO L513 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] [2021-10-28 09:36:00,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:36:00,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 09:36:00,984 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:00,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1650252631, now seen corresponding path program 1 times [2021-10-28 09:36:00,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:00,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890353075] [2021-10-28 09:36:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:00,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:01,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:01,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890353075] [2021-10-28 09:36:01,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890353075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:01,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:01,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 09:36:01,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850798087] [2021-10-28 09:36:01,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:36:01,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:36:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:01,414 INFO L87 Difference]: Start difference. First operand 878 states and 1181 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:05,587 INFO L93 Difference]: Finished difference Result 1043 states and 1451 transitions. [2021-10-28 09:36:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:36:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2021-10-28 09:36:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:05,592 INFO L225 Difference]: With dead ends: 1043 [2021-10-28 09:36:05,592 INFO L226 Difference]: Without dead ends: 1020 [2021-10-28 09:36:05,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:36:05,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2021-10-28 09:36:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 877. [2021-10-28 09:36:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 690 states have (on average 1.3289855072463768) internal successors, (917), 702 states have internal predecessors, (917), 109 states have call successors, (109), 55 states have call predecessors, (109), 77 states have return successors, (144), 126 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 09:36:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1170 transitions. [2021-10-28 09:36:05,618 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1170 transitions. Word has length 59 [2021-10-28 09:36:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:05,619 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1170 transitions. [2021-10-28 09:36:05,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1170 transitions. [2021-10-28 09:36:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:36:05,622 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:05,622 INFO L513 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] [2021-10-28 09:36:05,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-28 09:36:05,623 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash 846257089, now seen corresponding path program 1 times [2021-10-28 09:36:05,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:05,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648158854] [2021-10-28 09:36:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:05,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:05,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:05,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648158854] [2021-10-28 09:36:05,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648158854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:05,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:05,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 09:36:05,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291373558] [2021-10-28 09:36:05,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:36:05,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:05,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:36:05,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:36:05,941 INFO L87 Difference]: Start difference. First operand 877 states and 1170 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:36:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:09,264 INFO L93 Difference]: Finished difference Result 1032 states and 1425 transitions. [2021-10-28 09:36:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:36:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-10-28 09:36:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:09,270 INFO L225 Difference]: With dead ends: 1032 [2021-10-28 09:36:09,270 INFO L226 Difference]: Without dead ends: 1015 [2021-10-28 09:36:09,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:09,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-10-28 09:36:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 874. [2021-10-28 09:36:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 688 states have (on average 1.3284883720930232) internal successors, (914), 700 states have internal predecessors, (914), 108 states have call successors, (108), 55 states have call predecessors, (108), 77 states have return successors, (143), 125 states have call predecessors, (143), 102 states have call successors, (143) [2021-10-28 09:36:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1165 transitions. [2021-10-28 09:36:09,295 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1165 transitions. Word has length 58 [2021-10-28 09:36:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:09,296 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 1165 transitions. [2021-10-28 09:36:09,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:36:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1165 transitions. [2021-10-28 09:36:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 09:36:09,299 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:09,299 INFO L513 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] [2021-10-28 09:36:09,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 09:36:09,300 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:09,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1695565928, now seen corresponding path program 1 times [2021-10-28 09:36:09,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:09,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210024029] [2021-10-28 09:36:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:09,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 09:36:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:09,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:09,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210024029] [2021-10-28 09:36:09,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210024029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:09,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:09,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:36:09,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422805879] [2021-10-28 09:36:09,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:36:09,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:09,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:36:09,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:36:09,627 INFO L87 Difference]: Start difference. First operand 874 states and 1165 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:12,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:12,450 INFO L93 Difference]: Finished difference Result 1034 states and 1425 transitions. [2021-10-28 09:36:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:36:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2021-10-28 09:36:12,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:12,455 INFO L225 Difference]: With dead ends: 1034 [2021-10-28 09:36:12,455 INFO L226 Difference]: Without dead ends: 1000 [2021-10-28 09:36:12,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-10-28 09:36:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 862. [2021-10-28 09:36:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 679 states have (on average 1.3240058910162003) internal successors, (899), 691 states have internal predecessors, (899), 105 states have call successors, (105), 55 states have call predecessors, (105), 77 states have return successors, (140), 122 states have call predecessors, (140), 99 states have call successors, (140) [2021-10-28 09:36:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1144 transitions. [2021-10-28 09:36:12,476 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1144 transitions. Word has length 59 [2021-10-28 09:36:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:12,477 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1144 transitions. [2021-10-28 09:36:12,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1144 transitions. [2021-10-28 09:36:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:36:12,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:12,480 INFO L513 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] [2021-10-28 09:36:12,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-28 09:36:12,481 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1230874093, now seen corresponding path program 1 times [2021-10-28 09:36:12,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:12,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081207458] [2021-10-28 09:36:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:12,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 09:36:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:12,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:12,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081207458] [2021-10-28 09:36:12,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081207458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:12,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:12,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:36:12,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038264197] [2021-10-28 09:36:12,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:36:12,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:36:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:36:12,733 INFO L87 Difference]: Start difference. First operand 862 states and 1144 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:15,514 INFO L93 Difference]: Finished difference Result 1068 states and 1495 transitions. [2021-10-28 09:36:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:36:15,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-10-28 09:36:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:15,519 INFO L225 Difference]: With dead ends: 1068 [2021-10-28 09:36:15,520 INFO L226 Difference]: Without dead ends: 1068 [2021-10-28 09:36:15,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:36:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-10-28 09:36:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 869. [2021-10-28 09:36:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 684 states have (on average 1.3245614035087718) internal successors, (906), 697 states have internal predecessors, (906), 106 states have call successors, (106), 55 states have call predecessors, (106), 78 states have return successors, (147), 123 states have call predecessors, (147), 100 states have call successors, (147) [2021-10-28 09:36:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1159 transitions. [2021-10-28 09:36:15,563 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1159 transitions. Word has length 60 [2021-10-28 09:36:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:15,564 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1159 transitions. [2021-10-28 09:36:15,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1159 transitions. [2021-10-28 09:36:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:36:15,568 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:15,568 INFO L513 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] [2021-10-28 09:36:15,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-28 09:36:15,569 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1505633707, now seen corresponding path program 1 times [2021-10-28 09:36:15,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:15,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534712495] [2021-10-28 09:36:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:15,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 09:36:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:15,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:15,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534712495] [2021-10-28 09:36:15,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534712495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:15,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:15,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 09:36:15,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861433312] [2021-10-28 09:36:15,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:36:15,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:15,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:36:15,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:36:15,968 INFO L87 Difference]: Start difference. First operand 869 states and 1159 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:18,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:18,585 INFO L93 Difference]: Finished difference Result 1030 states and 1429 transitions. [2021-10-28 09:36:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:36:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-10-28 09:36:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:18,626 INFO L225 Difference]: With dead ends: 1030 [2021-10-28 09:36:18,626 INFO L226 Difference]: Without dead ends: 1008 [2021-10-28 09:36:18,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-10-28 09:36:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 867. [2021-10-28 09:36:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 683 states have (on average 1.3235724743777453) internal successors, (904), 696 states have internal predecessors, (904), 105 states have call successors, (105), 55 states have call predecessors, (105), 78 states have return successors, (146), 122 states have call predecessors, (146), 99 states have call successors, (146) [2021-10-28 09:36:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1155 transitions. [2021-10-28 09:36:18,652 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1155 transitions. Word has length 60 [2021-10-28 09:36:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:18,653 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1155 transitions. [2021-10-28 09:36:18,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1155 transitions. [2021-10-28 09:36:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:36:18,657 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:18,657 INFO L513 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] [2021-10-28 09:36:18,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-28 09:36:18,658 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:18,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash -297990324, now seen corresponding path program 1 times [2021-10-28 09:36:18,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:18,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048560542] [2021-10-28 09:36:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:18,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:18,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:18,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:18,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:36:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:19,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:19,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048560542] [2021-10-28 09:36:19,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048560542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:19,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:19,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:36:19,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368691427] [2021-10-28 09:36:19,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:36:19,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:19,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:36:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:36:19,012 INFO L87 Difference]: Start difference. First operand 867 states and 1155 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:20,668 INFO L93 Difference]: Finished difference Result 1010 states and 1403 transitions. [2021-10-28 09:36:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:36:20,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2021-10-28 09:36:20,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:20,671 INFO L225 Difference]: With dead ends: 1010 [2021-10-28 09:36:20,671 INFO L226 Difference]: Without dead ends: 1010 [2021-10-28 09:36:20,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:36:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2021-10-28 09:36:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 867. [2021-10-28 09:36:20,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 683 states have (on average 1.322108345534407) internal successors, (903), 696 states have internal predecessors, (903), 105 states have call successors, (105), 55 states have call predecessors, (105), 78 states have return successors, (146), 122 states have call predecessors, (146), 99 states have call successors, (146) [2021-10-28 09:36:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1154 transitions. [2021-10-28 09:36:20,694 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1154 transitions. Word has length 60 [2021-10-28 09:36:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:20,694 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1154 transitions. [2021-10-28 09:36:20,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1154 transitions. [2021-10-28 09:36:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:36:20,700 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:20,700 INFO L513 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] [2021-10-28 09:36:20,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-28 09:36:20,700 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash -807463414, now seen corresponding path program 1 times [2021-10-28 09:36:20,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:20,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571712235] [2021-10-28 09:36:20,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:20,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:21,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:36:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:21,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:21,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571712235] [2021-10-28 09:36:21,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571712235] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:21,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:21,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:36:21,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320711412] [2021-10-28 09:36:21,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:36:21,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:36:21,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:36:21,018 INFO L87 Difference]: Start difference. First operand 867 states and 1154 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:23,634 INFO L93 Difference]: Finished difference Result 1044 states and 1448 transitions. [2021-10-28 09:36:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:36:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2021-10-28 09:36:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:23,637 INFO L225 Difference]: With dead ends: 1044 [2021-10-28 09:36:23,637 INFO L226 Difference]: Without dead ends: 997 [2021-10-28 09:36:23,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:23,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2021-10-28 09:36:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 859. [2021-10-28 09:36:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 677 states have (on average 1.3175775480059084) internal successors, (892), 690 states have internal predecessors, (892), 103 states have call successors, (103), 55 states have call predecessors, (103), 78 states have return successors, (144), 120 states have call predecessors, (144), 97 states have call successors, (144) [2021-10-28 09:36:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1139 transitions. [2021-10-28 09:36:23,664 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1139 transitions. Word has length 60 [2021-10-28 09:36:23,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:23,664 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1139 transitions. [2021-10-28 09:36:23,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:36:23,665 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1139 transitions. [2021-10-28 09:36:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 09:36:23,667 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:23,668 INFO L513 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] [2021-10-28 09:36:23,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-28 09:36:23,668 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:23,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:23,669 INFO L85 PathProgramCache]: Analyzing trace with hash -819904678, now seen corresponding path program 1 times [2021-10-28 09:36:23,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:23,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049901033] [2021-10-28 09:36:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:23,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:36:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:23,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:23,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049901033] [2021-10-28 09:36:23,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049901033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:23,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:23,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:36:23,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711941709] [2021-10-28 09:36:23,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:36:23,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:23,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:36:23,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:36:23,961 INFO L87 Difference]: Start difference. First operand 859 states and 1139 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:26,026 INFO L93 Difference]: Finished difference Result 1015 states and 1423 transitions. [2021-10-28 09:36:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:36:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2021-10-28 09:36:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:26,030 INFO L225 Difference]: With dead ends: 1015 [2021-10-28 09:36:26,030 INFO L226 Difference]: Without dead ends: 1013 [2021-10-28 09:36:26,030 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:36:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-10-28 09:36:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 863. [2021-10-28 09:36:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 679 states have (on average 1.316642120765832) internal successors, (894), 694 states have internal predecessors, (894), 103 states have call successors, (103), 55 states have call predecessors, (103), 80 states have return successors, (160), 120 states have call predecessors, (160), 97 states have call successors, (160) [2021-10-28 09:36:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1157 transitions. [2021-10-28 09:36:26,047 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1157 transitions. Word has length 61 [2021-10-28 09:36:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:26,048 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1157 transitions. [2021-10-28 09:36:26,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1157 transitions. [2021-10-28 09:36:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:36:26,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:26,051 INFO L513 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] [2021-10-28 09:36:26,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-28 09:36:26,051 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash 153196542, now seen corresponding path program 1 times [2021-10-28 09:36:26,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:26,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675040340] [2021-10-28 09:36:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:26,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 09:36:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:26,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:26,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675040340] [2021-10-28 09:36:26,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675040340] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:26,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:26,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 09:36:26,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312761597] [2021-10-28 09:36:26,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:36:26,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:36:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:26,479 INFO L87 Difference]: Start difference. First operand 863 states and 1157 transitions. Second operand has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:29,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:29,899 INFO L93 Difference]: Finished difference Result 1022 states and 1423 transitions. [2021-10-28 09:36:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:36:29,899 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2021-10-28 09:36:29,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:29,902 INFO L225 Difference]: With dead ends: 1022 [2021-10-28 09:36:29,902 INFO L226 Difference]: Without dead ends: 1001 [2021-10-28 09:36:29,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:36:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-28 09:36:29,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 861. [2021-10-28 09:36:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 678 states have (on average 1.3156342182890854) internal successors, (892), 693 states have internal predecessors, (892), 102 states have call successors, (102), 55 states have call predecessors, (102), 80 states have return successors, (159), 119 states have call predecessors, (159), 96 states have call successors, (159) [2021-10-28 09:36:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1153 transitions. [2021-10-28 09:36:29,925 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1153 transitions. Word has length 62 [2021-10-28 09:36:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:29,925 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1153 transitions. [2021-10-28 09:36:29,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1153 transitions. [2021-10-28 09:36:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:36:29,928 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:29,929 INFO L513 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] [2021-10-28 09:36:29,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-28 09:36:29,929 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash -317898980, now seen corresponding path program 1 times [2021-10-28 09:36:29,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:29,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010914995] [2021-10-28 09:36:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:29,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:36:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:30,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:30,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010914995] [2021-10-28 09:36:30,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010914995] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:30,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:30,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 09:36:30,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156800795] [2021-10-28 09:36:30,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:36:30,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:36:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:30,307 INFO L87 Difference]: Start difference. First operand 861 states and 1153 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:33,639 INFO L93 Difference]: Finished difference Result 1013 states and 1412 transitions. [2021-10-28 09:36:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:36:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2021-10-28 09:36:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:33,642 INFO L225 Difference]: With dead ends: 1013 [2021-10-28 09:36:33,642 INFO L226 Difference]: Without dead ends: 994 [2021-10-28 09:36:33,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:36:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2021-10-28 09:36:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 856. [2021-10-28 09:36:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 675 states have (on average 1.3155555555555556) internal successors, (888), 690 states have internal predecessors, (888), 101 states have call successors, (101), 55 states have call predecessors, (101), 79 states have return successors, (157), 117 states have call predecessors, (157), 95 states have call successors, (157) [2021-10-28 09:36:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1146 transitions. [2021-10-28 09:36:33,660 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1146 transitions. Word has length 63 [2021-10-28 09:36:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:33,661 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 1146 transitions. [2021-10-28 09:36:33,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1146 transitions. [2021-10-28 09:36:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:36:33,664 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:33,664 INFO L513 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, 1, 1] [2021-10-28 09:36:33,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-28 09:36:33,665 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash 251959398, now seen corresponding path program 1 times [2021-10-28 09:36:33,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:33,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075108197] [2021-10-28 09:36:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:33,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:36:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:34,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:34,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075108197] [2021-10-28 09:36:34,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075108197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:34,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:34,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 09:36:34,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536668884] [2021-10-28 09:36:34,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:36:34,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:34,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:36:34,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:34,057 INFO L87 Difference]: Start difference. First operand 856 states and 1146 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:36,804 INFO L93 Difference]: Finished difference Result 1008 states and 1405 transitions. [2021-10-28 09:36:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:36:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 09:36:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:36,808 INFO L225 Difference]: With dead ends: 1008 [2021-10-28 09:36:36,808 INFO L226 Difference]: Without dead ends: 981 [2021-10-28 09:36:36,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:36,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2021-10-28 09:36:36,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 845. [2021-10-28 09:36:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 667 states have (on average 1.3163418290854574) internal successors, (878), 682 states have internal predecessors, (878), 99 states have call successors, (99), 55 states have call predecessors, (99), 78 states have return successors, (154), 114 states have call predecessors, (154), 93 states have call successors, (154) [2021-10-28 09:36:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1131 transitions. [2021-10-28 09:36:36,829 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1131 transitions. Word has length 69 [2021-10-28 09:36:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:36,830 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 1131 transitions. [2021-10-28 09:36:36,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1131 transitions. [2021-10-28 09:36:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:36:36,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:36,833 INFO L513 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] [2021-10-28 09:36:36,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-28 09:36:36,834 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash -136722259, now seen corresponding path program 1 times [2021-10-28 09:36:36,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:36,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974748507] [2021-10-28 09:36:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:36,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:37,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:37,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974748507] [2021-10-28 09:36:37,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974748507] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:37,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:37,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 09:36:37,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037248557] [2021-10-28 09:36:37,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:36:37,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:36:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:37,234 INFO L87 Difference]: Start difference. First operand 845 states and 1131 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:40,572 INFO L93 Difference]: Finished difference Result 995 states and 1386 transitions. [2021-10-28 09:36:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:36:40,572 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2021-10-28 09:36:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:40,574 INFO L225 Difference]: With dead ends: 995 [2021-10-28 09:36:40,575 INFO L226 Difference]: Without dead ends: 976 [2021-10-28 09:36:40,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:40,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-10-28 09:36:40,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 840. [2021-10-28 09:36:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 664 states have (on average 1.3162650602409638) internal successors, (874), 679 states have internal predecessors, (874), 98 states have call successors, (98), 55 states have call predecessors, (98), 77 states have return successors, (152), 112 states have call predecessors, (152), 92 states have call successors, (152) [2021-10-28 09:36:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1124 transitions. [2021-10-28 09:36:40,592 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1124 transitions. Word has length 62 [2021-10-28 09:36:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:40,592 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1124 transitions. [2021-10-28 09:36:40,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:36:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1124 transitions. [2021-10-28 09:36:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:36:40,595 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:40,595 INFO L513 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] [2021-10-28 09:36:40,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-28 09:36:40,596 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:40,596 INFO L85 PathProgramCache]: Analyzing trace with hash -937088575, now seen corresponding path program 1 times [2021-10-28 09:36:40,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:40,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931678319] [2021-10-28 09:36:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:40,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:36:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:41,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:41,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931678319] [2021-10-28 09:36:41,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931678319] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:41,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:41,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 09:36:41,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905440984] [2021-10-28 09:36:41,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:36:41,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:41,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:36:41,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:41,007 INFO L87 Difference]: Start difference. First operand 840 states and 1124 transitions. Second operand has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:36:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:43,817 INFO L93 Difference]: Finished difference Result 997 states and 1386 transitions. [2021-10-28 09:36:43,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:36:43,817 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 66 [2021-10-28 09:36:43,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:43,820 INFO L225 Difference]: With dead ends: 997 [2021-10-28 09:36:43,820 INFO L226 Difference]: Without dead ends: 975 [2021-10-28 09:36:43,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:36:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2021-10-28 09:36:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 838. [2021-10-28 09:36:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 663 states have (on average 1.315233785822021) internal successors, (872), 678 states have internal predecessors, (872), 97 states have call successors, (97), 55 states have call predecessors, (97), 77 states have return successors, (151), 111 states have call predecessors, (151), 91 states have call successors, (151) [2021-10-28 09:36:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1120 transitions. [2021-10-28 09:36:43,834 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1120 transitions. Word has length 66 [2021-10-28 09:36:43,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:43,835 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1120 transitions. [2021-10-28 09:36:43,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:36:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1120 transitions. [2021-10-28 09:36:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:36:43,838 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:43,838 INFO L513 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] [2021-10-28 09:36:43,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-28 09:36:43,838 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:43,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:43,839 INFO L85 PathProgramCache]: Analyzing trace with hash -972482111, now seen corresponding path program 1 times [2021-10-28 09:36:43,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:43,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338714313] [2021-10-28 09:36:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:43,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:43,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:44,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:44,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338714313] [2021-10-28 09:36:44,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338714313] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:44,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:44,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 09:36:44,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895238208] [2021-10-28 09:36:44,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:36:44,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:36:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:44,294 INFO L87 Difference]: Start difference. First operand 838 states and 1120 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:36:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:46,856 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2021-10-28 09:36:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:36:46,857 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2021-10-28 09:36:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:46,859 INFO L225 Difference]: With dead ends: 994 [2021-10-28 09:36:46,859 INFO L226 Difference]: Without dead ends: 972 [2021-10-28 09:36:46,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:36:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2021-10-28 09:36:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 836. [2021-10-28 09:36:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 662 states have (on average 1.3141993957703928) internal successors, (870), 677 states have internal predecessors, (870), 96 states have call successors, (96), 55 states have call predecessors, (96), 77 states have return successors, (150), 110 states have call predecessors, (150), 90 states have call successors, (150) [2021-10-28 09:36:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1116 transitions. [2021-10-28 09:36:46,873 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1116 transitions. Word has length 67 [2021-10-28 09:36:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:46,874 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1116 transitions. [2021-10-28 09:36:46,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:36:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1116 transitions. [2021-10-28 09:36:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:36:46,877 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:46,877 INFO L513 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] [2021-10-28 09:36:46,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-28 09:36:46,877 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2145458307, now seen corresponding path program 1 times [2021-10-28 09:36:46,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:46,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100479130] [2021-10-28 09:36:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:46,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 09:36:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:47,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:47,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100479130] [2021-10-28 09:36:47,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100479130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:47,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:47,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 09:36:47,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104240552] [2021-10-28 09:36:47,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:36:47,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:36:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:47,285 INFO L87 Difference]: Start difference. First operand 836 states and 1116 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:50,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:50,193 INFO L93 Difference]: Finished difference Result 989 states and 1370 transitions. [2021-10-28 09:36:50,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:36:50,193 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2021-10-28 09:36:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:50,196 INFO L225 Difference]: With dead ends: 989 [2021-10-28 09:36:50,196 INFO L226 Difference]: Without dead ends: 968 [2021-10-28 09:36:50,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:36:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-10-28 09:36:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 834. [2021-10-28 09:36:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 661 states have (on average 1.313161875945537) internal successors, (868), 676 states have internal predecessors, (868), 95 states have call successors, (95), 55 states have call predecessors, (95), 77 states have return successors, (149), 109 states have call predecessors, (149), 89 states have call successors, (149) [2021-10-28 09:36:50,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1112 transitions. [2021-10-28 09:36:50,216 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1112 transitions. Word has length 63 [2021-10-28 09:36:50,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:50,216 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1112 transitions. [2021-10-28 09:36:50,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1112 transitions. [2021-10-28 09:36:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:36:50,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:50,219 INFO L513 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] [2021-10-28 09:36:50,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-28 09:36:50,220 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 727665943, now seen corresponding path program 1 times [2021-10-28 09:36:50,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:50,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535970793] [2021-10-28 09:36:50,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:50,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:36:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 09:36:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:50,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:50,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535970793] [2021-10-28 09:36:50,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535970793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:50,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:50,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:36:50,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97409415] [2021-10-28 09:36:50,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:36:50,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:36:50,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:36:50,445 INFO L87 Difference]: Start difference. First operand 834 states and 1112 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:52,000 INFO L93 Difference]: Finished difference Result 829 states and 1097 transitions. [2021-10-28 09:36:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:36:52,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2021-10-28 09:36:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:52,003 INFO L225 Difference]: With dead ends: 829 [2021-10-28 09:36:52,003 INFO L226 Difference]: Without dead ends: 825 [2021-10-28 09:36:52,004 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:36:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2021-10-28 09:36:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 704. [2021-10-28 09:36:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 558 states have (on average 1.3010752688172043) internal successors, (726), 573 states have internal predecessors, (726), 81 states have call successors, (81), 48 states have call predecessors, (81), 64 states have return successors, (102), 89 states have call predecessors, (102), 75 states have call successors, (102) [2021-10-28 09:36:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 909 transitions. [2021-10-28 09:36:52,015 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 909 transitions. Word has length 63 [2021-10-28 09:36:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:52,015 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 909 transitions. [2021-10-28 09:36:52,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 909 transitions. [2021-10-28 09:36:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:36:52,018 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:52,018 INFO L513 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] [2021-10-28 09:36:52,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-28 09:36:52,018 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:52,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1717945833, now seen corresponding path program 1 times [2021-10-28 09:36:52,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:52,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576684752] [2021-10-28 09:36:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:52,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-10-28 09:36:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 09:36:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 09:36:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:52,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:52,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576684752] [2021-10-28 09:36:52,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576684752] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:52,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:52,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:36:52,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881210591] [2021-10-28 09:36:52,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:36:52,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:52,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:36:52,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:36:52,251 INFO L87 Difference]: Start difference. First operand 704 states and 909 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-10-28 09:36:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:53,661 INFO L93 Difference]: Finished difference Result 772 states and 1012 transitions. [2021-10-28 09:36:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:36:53,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2021-10-28 09:36:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:53,664 INFO L225 Difference]: With dead ends: 772 [2021-10-28 09:36:53,665 INFO L226 Difference]: Without dead ends: 772 [2021-10-28 09:36:53,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:36:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-10-28 09:36:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 704. [2021-10-28 09:36:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 558 states have (on average 1.2956989247311828) internal successors, (723), 573 states have internal predecessors, (723), 81 states have call successors, (81), 48 states have call predecessors, (81), 64 states have return successors, (102), 89 states have call predecessors, (102), 75 states have call successors, (102) [2021-10-28 09:36:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 906 transitions. [2021-10-28 09:36:53,680 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 906 transitions. Word has length 66 [2021-10-28 09:36:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:53,680 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 906 transitions. [2021-10-28 09:36:53,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-10-28 09:36:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 906 transitions. [2021-10-28 09:36:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 09:36:53,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:53,683 INFO L513 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] [2021-10-28 09:36:53,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-28 09:36:53,684 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1167771296, now seen corresponding path program 1 times [2021-10-28 09:36:53,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:53,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614638131] [2021-10-28 09:36:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:53,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:36:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 09:36:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:53,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:53,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614638131] [2021-10-28 09:36:53,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614638131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:53,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:53,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:36:53,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778867917] [2021-10-28 09:36:53,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:36:53,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:53,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:36:53,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:36:53,950 INFO L87 Difference]: Start difference. First operand 704 states and 906 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:55,575 INFO L93 Difference]: Finished difference Result 796 states and 1044 transitions. [2021-10-28 09:36:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:36:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2021-10-28 09:36:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:55,577 INFO L225 Difference]: With dead ends: 796 [2021-10-28 09:36:55,577 INFO L226 Difference]: Without dead ends: 796 [2021-10-28 09:36:55,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:55,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2021-10-28 09:36:55,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 710. [2021-10-28 09:36:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 563 states have (on average 1.2948490230905862) internal successors, (729), 578 states have internal predecessors, (729), 82 states have call successors, (82), 48 states have call predecessors, (82), 64 states have return successors, (103), 90 states have call predecessors, (103), 76 states have call successors, (103) [2021-10-28 09:36:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 914 transitions. [2021-10-28 09:36:55,588 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 914 transitions. Word has length 65 [2021-10-28 09:36:55,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:55,589 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 914 transitions. [2021-10-28 09:36:55,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 09:36:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 914 transitions. [2021-10-28 09:36:55,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:36:55,591 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:55,591 INFO L513 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] [2021-10-28 09:36:55,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-28 09:36:55,592 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:55,592 INFO L85 PathProgramCache]: Analyzing trace with hash -788931073, now seen corresponding path program 1 times [2021-10-28 09:36:55,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:55,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614971948] [2021-10-28 09:36:55,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:55,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:36:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-10-28 09:36:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:55,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:55,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614971948] [2021-10-28 09:36:55,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614971948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:55,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:55,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 09:36:55,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798228241] [2021-10-28 09:36:55,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:36:55,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:36:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:36:55,934 INFO L87 Difference]: Start difference. First operand 710 states and 914 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:58,370 INFO L93 Difference]: Finished difference Result 813 states and 1062 transitions. [2021-10-28 09:36:58,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:36:58,370 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-10-28 09:36:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:58,373 INFO L225 Difference]: With dead ends: 813 [2021-10-28 09:36:58,373 INFO L226 Difference]: Without dead ends: 739 [2021-10-28 09:36:58,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-10-28 09:36:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 683. [2021-10-28 09:36:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 541 states have (on average 1.2809611829944547) internal successors, (693), 556 states have internal predecessors, (693), 77 states have call successors, (77), 48 states have call predecessors, (77), 64 states have return successors, (97), 85 states have call predecessors, (97), 71 states have call successors, (97) [2021-10-28 09:36:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 867 transitions. [2021-10-28 09:36:58,398 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 867 transitions. Word has length 66 [2021-10-28 09:36:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:58,398 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 867 transitions. [2021-10-28 09:36:58,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:36:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 867 transitions. [2021-10-28 09:36:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:36:58,400 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:58,400 INFO L513 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] [2021-10-28 09:36:58,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-28 09:36:58,401 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:36:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:58,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1490530947, now seen corresponding path program 1 times [2021-10-28 09:36:58,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:58,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770313563] [2021-10-28 09:36:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:58,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:36:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:36:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:36:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:36:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:36:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:36:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-10-28 09:36:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:58,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:58,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770313563] [2021-10-28 09:36:58,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770313563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:36:58,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:36:58,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:36:58,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087766510] [2021-10-28 09:36:58,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:36:58,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:36:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:36:58,713 INFO L87 Difference]: Start difference. First operand 683 states and 867 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:00,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:00,059 INFO L93 Difference]: Finished difference Result 726 states and 932 transitions. [2021-10-28 09:37:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:00,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-10-28 09:37:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:00,061 INFO L225 Difference]: With dead ends: 726 [2021-10-28 09:37:00,061 INFO L226 Difference]: Without dead ends: 726 [2021-10-28 09:37:00,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:37:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-10-28 09:37:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 673. [2021-10-28 09:37:00,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 533 states have (on average 1.277673545966229) internal successors, (681), 548 states have internal predecessors, (681), 75 states have call successors, (75), 48 states have call predecessors, (75), 64 states have return successors, (95), 83 states have call predecessors, (95), 69 states have call successors, (95) [2021-10-28 09:37:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 851 transitions. [2021-10-28 09:37:00,073 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 851 transitions. Word has length 66 [2021-10-28 09:37:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:00,073 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 851 transitions. [2021-10-28 09:37:00,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 851 transitions. [2021-10-28 09:37:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:37:00,076 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:00,076 INFO L513 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] [2021-10-28 09:37:00,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-28 09:37:00,076 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1087637683, now seen corresponding path program 1 times [2021-10-28 09:37:00,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:00,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151665900] [2021-10-28 09:37:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:00,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 09:37:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:00,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:00,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151665900] [2021-10-28 09:37:00,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151665900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:00,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:00,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:37:00,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510689568] [2021-10-28 09:37:00,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:37:00,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:37:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:37:00,331 INFO L87 Difference]: Start difference. First operand 673 states and 851 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:01,821 INFO L93 Difference]: Finished difference Result 722 states and 926 transitions. [2021-10-28 09:37:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-10-28 09:37:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:01,823 INFO L225 Difference]: With dead ends: 722 [2021-10-28 09:37:01,823 INFO L226 Difference]: Without dead ends: 717 [2021-10-28 09:37:01,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:37:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-10-28 09:37:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 668. [2021-10-28 09:37:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 529 states have (on average 1.277882797731569) internal successors, (676), 544 states have internal predecessors, (676), 74 states have call successors, (74), 48 states have call predecessors, (74), 64 states have return successors, (94), 82 states have call predecessors, (94), 68 states have call successors, (94) [2021-10-28 09:37:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 844 transitions. [2021-10-28 09:37:01,832 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 844 transitions. Word has length 67 [2021-10-28 09:37:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:01,833 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 844 transitions. [2021-10-28 09:37:01,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 844 transitions. [2021-10-28 09:37:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:37:01,835 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:01,835 INFO L513 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] [2021-10-28 09:37:01,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-28 09:37:01,836 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:01,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1213196842, now seen corresponding path program 1 times [2021-10-28 09:37:01,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:01,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142123283] [2021-10-28 09:37:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:01,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:01,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:02,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:02,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142123283] [2021-10-28 09:37:02,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142123283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:02,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:02,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:37:02,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150543927] [2021-10-28 09:37:02,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:37:02,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:02,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:37:02,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:37:02,081 INFO L87 Difference]: Start difference. First operand 668 states and 844 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:03,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:03,691 INFO L93 Difference]: Finished difference Result 823 states and 1052 transitions. [2021-10-28 09:37:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:37:03,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2021-10-28 09:37:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:03,693 INFO L225 Difference]: With dead ends: 823 [2021-10-28 09:37:03,693 INFO L226 Difference]: Without dead ends: 823 [2021-10-28 09:37:03,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:03,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-10-28 09:37:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 714. [2021-10-28 09:37:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 565 states have (on average 1.2707964601769912) internal successors, (718), 582 states have internal predecessors, (718), 76 states have call successors, (76), 50 states have call predecessors, (76), 72 states have return successors, (102), 90 states have call predecessors, (102), 70 states have call successors, (102) [2021-10-28 09:37:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 896 transitions. [2021-10-28 09:37:03,707 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 896 transitions. Word has length 67 [2021-10-28 09:37:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:03,707 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 896 transitions. [2021-10-28 09:37:03,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 896 transitions. [2021-10-28 09:37:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 09:37:03,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:03,710 INFO L513 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, 1] [2021-10-28 09:37:03,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-28 09:37:03,710 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:03,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -601739544, now seen corresponding path program 1 times [2021-10-28 09:37:03,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:03,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592050917] [2021-10-28 09:37:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:03,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:03,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:03,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592050917] [2021-10-28 09:37:03,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592050917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:03,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:03,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:37:03,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332546337] [2021-10-28 09:37:03,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:37:03,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:03,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:37:03,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:37:03,974 INFO L87 Difference]: Start difference. First operand 714 states and 896 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:05,696 INFO L93 Difference]: Finished difference Result 820 states and 1046 transitions. [2021-10-28 09:37:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:37:05,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-10-28 09:37:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:05,699 INFO L225 Difference]: With dead ends: 820 [2021-10-28 09:37:05,699 INFO L226 Difference]: Without dead ends: 820 [2021-10-28 09:37:05,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:37:05,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-10-28 09:37:05,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 714. [2021-10-28 09:37:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 565 states have (on average 1.2672566371681415) internal successors, (716), 582 states have internal predecessors, (716), 76 states have call successors, (76), 50 states have call predecessors, (76), 72 states have return successors, (102), 90 states have call predecessors, (102), 70 states have call successors, (102) [2021-10-28 09:37:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 894 transitions. [2021-10-28 09:37:05,710 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 894 transitions. Word has length 68 [2021-10-28 09:37:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:05,711 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 894 transitions. [2021-10-28 09:37:05,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 894 transitions. [2021-10-28 09:37:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 09:37:05,713 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:05,713 INFO L513 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, 1, 1, 1] [2021-10-28 09:37:05,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-28 09:37:05,714 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:05,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash -151974564, now seen corresponding path program 1 times [2021-10-28 09:37:05,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:05,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066888646] [2021-10-28 09:37:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:05,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 09:37:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-10-28 09:37:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:06,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:06,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066888646] [2021-10-28 09:37:06,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066888646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:06,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:06,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-10-28 09:37:06,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153965136] [2021-10-28 09:37:06,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:37:06,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:06,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:37:06,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:37:06,202 INFO L87 Difference]: Start difference. First operand 714 states and 894 transitions. Second operand has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:37:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:08,881 INFO L93 Difference]: Finished difference Result 784 states and 993 transitions. [2021-10-28 09:37:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:37:08,882 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2021-10-28 09:37:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:08,884 INFO L225 Difference]: With dead ends: 784 [2021-10-28 09:37:08,884 INFO L226 Difference]: Without dead ends: 759 [2021-10-28 09:37:08,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 09:37:08,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2021-10-28 09:37:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 710. [2021-10-28 09:37:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 562 states have (on average 1.2669039145907472) internal successors, (712), 579 states have internal predecessors, (712), 75 states have call successors, (75), 50 states have call predecessors, (75), 72 states have return successors, (101), 89 states have call predecessors, (101), 69 states have call successors, (101) [2021-10-28 09:37:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 888 transitions. [2021-10-28 09:37:08,895 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 888 transitions. Word has length 70 [2021-10-28 09:37:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:08,896 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 888 transitions. [2021-10-28 09:37:08,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:37:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 888 transitions. [2021-10-28 09:37:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:37:08,898 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:08,898 INFO L513 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, 1, 1] [2021-10-28 09:37:08,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-28 09:37:08,899 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -836181127, now seen corresponding path program 1 times [2021-10-28 09:37:08,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:08,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512853956] [2021-10-28 09:37:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:08,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 09:37:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:37:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:09,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:09,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512853956] [2021-10-28 09:37:09,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512853956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:09,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:09,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 09:37:09,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055738083] [2021-10-28 09:37:09,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:37:09,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:09,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:37:09,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:37:09,281 INFO L87 Difference]: Start difference. First operand 710 states and 888 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:11,279 INFO L93 Difference]: Finished difference Result 783 states and 991 transitions. [2021-10-28 09:37:11,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:37:11,280 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 09:37:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:11,281 INFO L225 Difference]: With dead ends: 783 [2021-10-28 09:37:11,282 INFO L226 Difference]: Without dead ends: 756 [2021-10-28 09:37:11,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:37:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-10-28 09:37:11,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 707. [2021-10-28 09:37:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 560 states have (on average 1.2660714285714285) internal successors, (709), 577 states have internal predecessors, (709), 74 states have call successors, (74), 50 states have call predecessors, (74), 72 states have return successors, (100), 88 states have call predecessors, (100), 68 states have call successors, (100) [2021-10-28 09:37:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 883 transitions. [2021-10-28 09:37:11,292 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 883 transitions. Word has length 69 [2021-10-28 09:37:11,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:11,292 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 883 transitions. [2021-10-28 09:37:11,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 883 transitions. [2021-10-28 09:37:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:37:11,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:11,295 INFO L513 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, 1, 1] [2021-10-28 09:37:11,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-28 09:37:11,296 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1918393902, now seen corresponding path program 1 times [2021-10-28 09:37:11,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:11,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013991426] [2021-10-28 09:37:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:11,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 09:37:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:37:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:11,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:11,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013991426] [2021-10-28 09:37:11,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013991426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:11,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:11,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:37:11,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905911694] [2021-10-28 09:37:11,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:37:11,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:37:11,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:37:11,573 INFO L87 Difference]: Start difference. First operand 707 states and 883 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:13,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:13,448 INFO L93 Difference]: Finished difference Result 756 states and 958 transitions. [2021-10-28 09:37:13,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 09:37:13,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:13,452 INFO L225 Difference]: With dead ends: 756 [2021-10-28 09:37:13,452 INFO L226 Difference]: Without dead ends: 751 [2021-10-28 09:37:13,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:37:13,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-10-28 09:37:13,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 702. [2021-10-28 09:37:13,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 556 states have (on average 1.2661870503597121) internal successors, (704), 573 states have internal predecessors, (704), 73 states have call successors, (73), 50 states have call predecessors, (73), 72 states have return successors, (99), 87 states have call predecessors, (99), 67 states have call successors, (99) [2021-10-28 09:37:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 876 transitions. [2021-10-28 09:37:13,466 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 876 transitions. Word has length 69 [2021-10-28 09:37:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:13,466 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 876 transitions. [2021-10-28 09:37:13,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:13,467 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 876 transitions. [2021-10-28 09:37:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:37:13,469 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:13,469 INFO L513 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, 1, 1] [2021-10-28 09:37:13,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-28 09:37:13,469 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:13,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2114383891, now seen corresponding path program 1 times [2021-10-28 09:37:13,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:13,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242764488] [2021-10-28 09:37:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:13,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:13,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:13,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242764488] [2021-10-28 09:37:13,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242764488] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:13,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:13,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 09:37:13,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921013272] [2021-10-28 09:37:13,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:37:13,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:37:13,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:37:13,981 INFO L87 Difference]: Start difference. First operand 702 states and 876 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:16,511 INFO L93 Difference]: Finished difference Result 758 states and 958 transitions. [2021-10-28 09:37:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:37:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 09:37:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:16,513 INFO L225 Difference]: With dead ends: 758 [2021-10-28 09:37:16,513 INFO L226 Difference]: Without dead ends: 755 [2021-10-28 09:37:16,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:37:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-10-28 09:37:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 699. [2021-10-28 09:37:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 553 states have (on average 1.2603978300180831) internal successors, (697), 570 states have internal predecessors, (697), 73 states have call successors, (73), 50 states have call predecessors, (73), 72 states have return successors, (99), 87 states have call predecessors, (99), 67 states have call successors, (99) [2021-10-28 09:37:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 869 transitions. [2021-10-28 09:37:16,522 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 869 transitions. Word has length 69 [2021-10-28 09:37:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:16,523 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 869 transitions. [2021-10-28 09:37:16,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 869 transitions. [2021-10-28 09:37:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:37:16,524 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:16,524 INFO L513 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, 1, 1] [2021-10-28 09:37:16,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-28 09:37:16,524 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:16,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2114660721, now seen corresponding path program 1 times [2021-10-28 09:37:16,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:16,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246134899] [2021-10-28 09:37:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:16,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:16,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:16,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246134899] [2021-10-28 09:37:16,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246134899] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:16,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:16,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:37:16,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371874866] [2021-10-28 09:37:16,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:37:16,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:37:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:37:16,811 INFO L87 Difference]: Start difference. First operand 699 states and 869 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:19,247 INFO L93 Difference]: Finished difference Result 806 states and 1021 transitions. [2021-10-28 09:37:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:37:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 09:37:19,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:19,249 INFO L225 Difference]: With dead ends: 806 [2021-10-28 09:37:19,249 INFO L226 Difference]: Without dead ends: 775 [2021-10-28 09:37:19,250 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:37:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-10-28 09:37:19,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 670. [2021-10-28 09:37:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 529 states have (on average 1.2589792060491494) internal successors, (666), 545 states have internal predecessors, (666), 72 states have call successors, (72), 49 states have call predecessors, (72), 68 states have return successors, (95), 83 states have call predecessors, (95), 66 states have call successors, (95) [2021-10-28 09:37:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 833 transitions. [2021-10-28 09:37:19,263 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 833 transitions. Word has length 69 [2021-10-28 09:37:19,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 833 transitions. [2021-10-28 09:37:19,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 833 transitions. [2021-10-28 09:37:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:37:19,266 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:19,266 INFO L513 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, 1, 1] [2021-10-28 09:37:19,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-28 09:37:19,267 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1980103703, now seen corresponding path program 1 times [2021-10-28 09:37:19,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:19,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345511726] [2021-10-28 09:37:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:19,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:19,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:19,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345511726] [2021-10-28 09:37:19,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345511726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:19,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:19,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:37:19,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351470697] [2021-10-28 09:37:19,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:37:19,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:37:19,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:37:19,522 INFO L87 Difference]: Start difference. First operand 670 states and 833 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:20,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:20,779 INFO L93 Difference]: Finished difference Result 722 states and 905 transitions. [2021-10-28 09:37:20,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:37:20,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 09:37:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:20,781 INFO L225 Difference]: With dead ends: 722 [2021-10-28 09:37:20,781 INFO L226 Difference]: Without dead ends: 705 [2021-10-28 09:37:20,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-10-28 09:37:20,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 652. [2021-10-28 09:37:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 516 states have (on average 1.251937984496124) internal successors, (646), 531 states have internal predecessors, (646), 71 states have call successors, (71), 48 states have call predecessors, (71), 64 states have return successors, (91), 79 states have call predecessors, (91), 65 states have call successors, (91) [2021-10-28 09:37:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 808 transitions. [2021-10-28 09:37:20,798 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 808 transitions. Word has length 69 [2021-10-28 09:37:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:20,799 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 808 transitions. [2021-10-28 09:37:20,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 808 transitions. [2021-10-28 09:37:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:37:20,801 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:20,801 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:20,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-28 09:37:20,802 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:20,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2137250320, now seen corresponding path program 1 times [2021-10-28 09:37:20,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:20,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799312808] [2021-10-28 09:37:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:20,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:37:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 09:37:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:21,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:21,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799312808] [2021-10-28 09:37:21,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799312808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:21,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:21,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 09:37:21,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064520947] [2021-10-28 09:37:21,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:37:21,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:21,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:37:21,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:37:21,266 INFO L87 Difference]: Start difference. First operand 652 states and 808 transitions. Second operand has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:37:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:23,724 INFO L93 Difference]: Finished difference Result 738 states and 932 transitions. [2021-10-28 09:37:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:37:23,725 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2021-10-28 09:37:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:23,726 INFO L225 Difference]: With dead ends: 738 [2021-10-28 09:37:23,726 INFO L226 Difference]: Without dead ends: 716 [2021-10-28 09:37:23,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:37:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-28 09:37:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 650. [2021-10-28 09:37:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 515 states have (on average 1.250485436893204) internal successors, (644), 530 states have internal predecessors, (644), 70 states have call successors, (70), 48 states have call predecessors, (70), 64 states have return successors, (90), 78 states have call predecessors, (90), 64 states have call successors, (90) [2021-10-28 09:37:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 804 transitions. [2021-10-28 09:37:23,734 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 804 transitions. Word has length 74 [2021-10-28 09:37:23,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:23,734 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 804 transitions. [2021-10-28 09:37:23,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:37:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 804 transitions. [2021-10-28 09:37:23,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:37:23,735 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:23,736 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:37:23,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-28 09:37:23,736 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:23,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1031688052, now seen corresponding path program 1 times [2021-10-28 09:37:23,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:23,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287123709] [2021-10-28 09:37:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:23,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:23,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 09:37:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:24,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 09:37:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:24,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:24,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287123709] [2021-10-28 09:37:24,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287123709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:24,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:24,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:37:24,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503735014] [2021-10-28 09:37:24,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:37:24,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:24,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:37:24,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:24,053 INFO L87 Difference]: Start difference. First operand 650 states and 804 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:25,303 INFO L93 Difference]: Finished difference Result 702 states and 881 transitions. [2021-10-28 09:37:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:37:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-10-28 09:37:25,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:25,305 INFO L225 Difference]: With dead ends: 702 [2021-10-28 09:37:25,305 INFO L226 Difference]: Without dead ends: 702 [2021-10-28 09:37:25,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:37:25,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-10-28 09:37:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 650. [2021-10-28 09:37:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 515 states have (on average 1.2485436893203883) internal successors, (643), 530 states have internal predecessors, (643), 70 states have call successors, (70), 48 states have call predecessors, (70), 64 states have return successors, (90), 78 states have call predecessors, (90), 64 states have call successors, (90) [2021-10-28 09:37:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 803 transitions. [2021-10-28 09:37:25,315 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 803 transitions. Word has length 71 [2021-10-28 09:37:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:25,315 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 803 transitions. [2021-10-28 09:37:25,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 803 transitions. [2021-10-28 09:37:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:37:25,317 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:25,317 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:37:25,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-28 09:37:25,318 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1212295246, now seen corresponding path program 1 times [2021-10-28 09:37:25,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:25,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629309460] [2021-10-28 09:37:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:25,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 09:37:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 09:37:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:25,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:25,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629309460] [2021-10-28 09:37:25,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629309460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:25,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:25,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 09:37:25,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700066404] [2021-10-28 09:37:25,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:37:25,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:37:25,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:37:25,752 INFO L87 Difference]: Start difference. First operand 650 states and 803 transitions. Second operand has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:37:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:27,892 INFO L93 Difference]: Finished difference Result 735 states and 924 transitions. [2021-10-28 09:37:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:37:27,892 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2021-10-28 09:37:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:27,893 INFO L225 Difference]: With dead ends: 735 [2021-10-28 09:37:27,894 INFO L226 Difference]: Without dead ends: 700 [2021-10-28 09:37:27,894 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:37:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-28 09:37:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 645. [2021-10-28 09:37:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 511 states have (on average 1.2446183953033267) internal successors, (636), 526 states have internal predecessors, (636), 69 states have call successors, (69), 48 states have call predecessors, (69), 64 states have return successors, (88), 77 states have call predecessors, (88), 63 states have call successors, (88) [2021-10-28 09:37:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 793 transitions. [2021-10-28 09:37:27,901 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 793 transitions. Word has length 71 [2021-10-28 09:37:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:27,901 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 793 transitions. [2021-10-28 09:37:27,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 09:37:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 793 transitions. [2021-10-28 09:37:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:37:27,902 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:27,903 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:37:27,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-28 09:37:27,903 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:27,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1255722987, now seen corresponding path program 1 times [2021-10-28 09:37:27,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:27,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015731945] [2021-10-28 09:37:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:27,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 09:37:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 09:37:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:28,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:28,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015731945] [2021-10-28 09:37:28,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015731945] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:28,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:28,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:37:28,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863393097] [2021-10-28 09:37:28,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:37:28,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:37:28,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:28,193 INFO L87 Difference]: Start difference. First operand 645 states and 793 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:29,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:29,466 INFO L93 Difference]: Finished difference Result 695 states and 867 transitions. [2021-10-28 09:37:29,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:29,466 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-10-28 09:37:29,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:29,467 INFO L225 Difference]: With dead ends: 695 [2021-10-28 09:37:29,467 INFO L226 Difference]: Without dead ends: 689 [2021-10-28 09:37:29,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:37:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-10-28 09:37:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 639. [2021-10-28 09:37:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 506 states have (on average 1.2450592885375493) internal successors, (630), 521 states have internal predecessors, (630), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 09:37:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 785 transitions. [2021-10-28 09:37:29,475 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 785 transitions. Word has length 71 [2021-10-28 09:37:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:29,475 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 785 transitions. [2021-10-28 09:37:29,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 785 transitions. [2021-10-28 09:37:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:37:29,476 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:29,476 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:37:29,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-28 09:37:29,477 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash 110398293, now seen corresponding path program 1 times [2021-10-28 09:37:29,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:29,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209200675] [2021-10-28 09:37:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:29,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:29,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:29,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209200675] [2021-10-28 09:37:29,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209200675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:29,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:29,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 09:37:29,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877171568] [2021-10-28 09:37:29,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:37:29,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:29,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:37:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:37:29,907 INFO L87 Difference]: Start difference. First operand 639 states and 785 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:31,993 INFO L93 Difference]: Finished difference Result 756 states and 933 transitions. [2021-10-28 09:37:31,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:37:31,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-10-28 09:37:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:31,995 INFO L225 Difference]: With dead ends: 756 [2021-10-28 09:37:31,995 INFO L226 Difference]: Without dead ends: 731 [2021-10-28 09:37:31,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:37:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-10-28 09:37:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 645. [2021-10-28 09:37:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 512 states have (on average 1.234375) internal successors, (632), 527 states have internal predecessors, (632), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 09:37:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 787 transitions. [2021-10-28 09:37:32,003 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 787 transitions. Word has length 71 [2021-10-28 09:37:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:32,003 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 787 transitions. [2021-10-28 09:37:32,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 787 transitions. [2021-10-28 09:37:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 09:37:32,004 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:32,005 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:32,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-28 09:37:32,005 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:32,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash -955000686, now seen corresponding path program 1 times [2021-10-28 09:37:32,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:32,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865208645] [2021-10-28 09:37:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:32,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:37:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-10-28 09:37:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:32,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:32,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865208645] [2021-10-28 09:37:32,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865208645] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:32,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:32,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 09:37:32,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595725292] [2021-10-28 09:37:32,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:37:32,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:37:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:37:32,455 INFO L87 Difference]: Start difference. First operand 645 states and 787 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:37:34,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:34,464 INFO L93 Difference]: Finished difference Result 717 states and 887 transitions. [2021-10-28 09:37:34,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:37:34,465 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2021-10-28 09:37:34,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:34,466 INFO L225 Difference]: With dead ends: 717 [2021-10-28 09:37:34,466 INFO L226 Difference]: Without dead ends: 691 [2021-10-28 09:37:34,466 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:37:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-10-28 09:37:34,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 643. [2021-10-28 09:37:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 510 states have (on average 1.2333333333333334) internal successors, (629), 525 states have internal predecessors, (629), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 09:37:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 784 transitions. [2021-10-28 09:37:34,474 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 784 transitions. Word has length 77 [2021-10-28 09:37:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:34,474 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 784 transitions. [2021-10-28 09:37:34,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:37:34,475 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 784 transitions. [2021-10-28 09:37:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:37:34,476 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:34,477 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:34,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-28 09:37:34,477 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:34,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash -111129446, now seen corresponding path program 1 times [2021-10-28 09:37:34,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:34,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052594406] [2021-10-28 09:37:34,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:34,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 09:37:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:34,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:34,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052594406] [2021-10-28 09:37:34,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052594406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:34,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:34,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:37:34,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650111751] [2021-10-28 09:37:34,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:37:34,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:34,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:37:34,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:34,769 INFO L87 Difference]: Start difference. First operand 643 states and 784 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:36,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:36,038 INFO L93 Difference]: Finished difference Result 690 states and 853 transitions. [2021-10-28 09:37:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-10-28 09:37:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:36,040 INFO L225 Difference]: With dead ends: 690 [2021-10-28 09:37:36,040 INFO L226 Difference]: Without dead ends: 679 [2021-10-28 09:37:36,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:37:36,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-10-28 09:37:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 631. [2021-10-28 09:37:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 499 states have (on average 1.2284569138276553) internal successors, (613), 514 states have internal predecessors, (613), 67 states have call successors, (67), 48 states have call predecessors, (67), 64 states have return successors, (86), 75 states have call predecessors, (86), 61 states have call successors, (86) [2021-10-28 09:37:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 766 transitions. [2021-10-28 09:37:36,046 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 766 transitions. Word has length 73 [2021-10-28 09:37:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:36,047 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 766 transitions. [2021-10-28 09:37:36,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:37:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 766 transitions. [2021-10-28 09:37:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:37:36,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:36,048 INFO L513 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, 1, 1, 1, 1, 1] [2021-10-28 09:37:36,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-28 09:37:36,048 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:36,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:36,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2040120255, now seen corresponding path program 1 times [2021-10-28 09:37:36,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:36,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814268770] [2021-10-28 09:37:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:36,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 09:37:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:36,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:36,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814268770] [2021-10-28 09:37:36,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814268770] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:36,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:36,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 09:37:36,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464463320] [2021-10-28 09:37:36,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:37:36,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:36,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:37:36,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:37:36,439 INFO L87 Difference]: Start difference. First operand 631 states and 766 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:38,512 INFO L93 Difference]: Finished difference Result 696 states and 856 transitions. [2021-10-28 09:37:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:37:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2021-10-28 09:37:38,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:38,514 INFO L225 Difference]: With dead ends: 696 [2021-10-28 09:37:38,514 INFO L226 Difference]: Without dead ends: 677 [2021-10-28 09:37:38,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:37:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-10-28 09:37:38,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 629. [2021-10-28 09:37:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 498 states have (on average 1.2269076305220883) internal successors, (611), 513 states have internal predecessors, (611), 66 states have call successors, (66), 48 states have call predecessors, (66), 64 states have return successors, (85), 74 states have call predecessors, (85), 60 states have call successors, (85) [2021-10-28 09:37:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 762 transitions. [2021-10-28 09:37:38,525 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 762 transitions. Word has length 72 [2021-10-28 09:37:38,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:38,525 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 762 transitions. [2021-10-28 09:37:38,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:37:38,525 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 762 transitions. [2021-10-28 09:37:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:37:38,527 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:38,527 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:38,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-28 09:37:38,527 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:38,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:38,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1909315756, now seen corresponding path program 1 times [2021-10-28 09:37:38,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:38,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874662977] [2021-10-28 09:37:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:38,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 09:37:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:38,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:38,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874662977] [2021-10-28 09:37:38,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874662977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:38,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:38,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 09:37:38,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266257817] [2021-10-28 09:37:38,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:37:38,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:37:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:37:38,935 INFO L87 Difference]: Start difference. First operand 629 states and 762 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:37:43,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:43,436 INFO L93 Difference]: Finished difference Result 1384 states and 1695 transitions. [2021-10-28 09:37:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 09:37:43,437 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2021-10-28 09:37:43,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:43,439 INFO L225 Difference]: With dead ends: 1384 [2021-10-28 09:37:43,439 INFO L226 Difference]: Without dead ends: 1377 [2021-10-28 09:37:43,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=676, Invalid=2630, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 09:37:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2021-10-28 09:37:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1004. [2021-10-28 09:37:43,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 799 states have (on average 1.2453066332916145) internal successors, (995), 824 states have internal predecessors, (995), 101 states have call successors, (101), 79 states have call predecessors, (101), 103 states have return successors, (136), 107 states have call predecessors, (136), 95 states have call successors, (136) [2021-10-28 09:37:43,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1232 transitions. [2021-10-28 09:37:43,452 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1232 transitions. Word has length 73 [2021-10-28 09:37:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:43,453 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1232 transitions. [2021-10-28 09:37:43,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:37:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1232 transitions. [2021-10-28 09:37:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:37:43,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:43,455 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:43,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-28 09:37:43,455 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:43,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1706379286, now seen corresponding path program 1 times [2021-10-28 09:37:43,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:43,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260547518] [2021-10-28 09:37:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:43,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:37:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 09:37:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:43,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:43,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260547518] [2021-10-28 09:37:43,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260547518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:43,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:43,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 09:37:43,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934846699] [2021-10-28 09:37:43,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:37:43,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:37:43,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:37:43,781 INFO L87 Difference]: Start difference. First operand 1004 states and 1232 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:37:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:46,366 INFO L93 Difference]: Finished difference Result 1267 states and 1563 transitions. [2021-10-28 09:37:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:37:46,367 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2021-10-28 09:37:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:46,368 INFO L225 Difference]: With dead ends: 1267 [2021-10-28 09:37:46,369 INFO L226 Difference]: Without dead ends: 1267 [2021-10-28 09:37:46,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:37:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-10-28 09:37:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1095. [2021-10-28 09:37:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 870 states have (on average 1.2344827586206897) internal successors, (1074), 890 states have internal predecessors, (1074), 115 states have call successors, (115), 83 states have call predecessors, (115), 109 states have return successors, (152), 126 states have call predecessors, (152), 109 states have call successors, (152) [2021-10-28 09:37:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1341 transitions. [2021-10-28 09:37:46,385 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1341 transitions. Word has length 73 [2021-10-28 09:37:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:46,386 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1341 transitions. [2021-10-28 09:37:46,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:37:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1341 transitions. [2021-10-28 09:37:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-28 09:37:46,389 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:46,389 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:46,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-28 09:37:46,390 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:46,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash -513989019, now seen corresponding path program 1 times [2021-10-28 09:37:46,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:46,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711996556] [2021-10-28 09:37:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:46,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:37:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-10-28 09:37:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:46,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:46,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711996556] [2021-10-28 09:37:46,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711996556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:46,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:46,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:37:46,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167966208] [2021-10-28 09:37:46,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:37:46,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:46,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:37:46,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:37:46,676 INFO L87 Difference]: Start difference. First operand 1095 states and 1341 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:37:47,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:47,908 INFO L93 Difference]: Finished difference Result 1161 states and 1431 transitions. [2021-10-28 09:37:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:37:47,908 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2021-10-28 09:37:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:47,910 INFO L225 Difference]: With dead ends: 1161 [2021-10-28 09:37:47,910 INFO L226 Difference]: Without dead ends: 1131 [2021-10-28 09:37:47,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:37:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2021-10-28 09:37:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1061. [2021-10-28 09:37:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 842 states have (on average 1.2304038004750595) internal successors, (1036), 862 states have internal predecessors, (1036), 109 states have call successors, (109), 83 states have call predecessors, (109), 109 states have return successors, (144), 120 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 09:37:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1289 transitions. [2021-10-28 09:37:47,922 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1289 transitions. Word has length 78 [2021-10-28 09:37:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:47,922 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 1289 transitions. [2021-10-28 09:37:47,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:37:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1289 transitions. [2021-10-28 09:37:47,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-28 09:37:47,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:47,924 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:47,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-28 09:37:47,924 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash 314197659, now seen corresponding path program 1 times [2021-10-28 09:37:47,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:47,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450757720] [2021-10-28 09:37:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:47,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:37:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:37:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 09:37:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:48,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:48,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450757720] [2021-10-28 09:37:48,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450757720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:48,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:48,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 09:37:48,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286379139] [2021-10-28 09:37:48,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:37:48,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:48,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:37:48,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:37:48,221 INFO L87 Difference]: Start difference. First operand 1061 states and 1289 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:37:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:49,526 INFO L93 Difference]: Finished difference Result 1101 states and 1347 transitions. [2021-10-28 09:37:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:37:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2021-10-28 09:37:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:49,528 INFO L225 Difference]: With dead ends: 1101 [2021-10-28 09:37:49,528 INFO L226 Difference]: Without dead ends: 1065 [2021-10-28 09:37:49,528 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:37:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-10-28 09:37:49,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1013. [2021-10-28 09:37:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 808 states have (on average 1.2326732673267327) internal successors, (996), 828 states have internal predecessors, (996), 99 states have call successors, (99), 79 states have call predecessors, (99), 105 states have return successors, (132), 110 states have call predecessors, (132), 93 states have call successors, (132) [2021-10-28 09:37:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1227 transitions. [2021-10-28 09:37:49,545 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1227 transitions. Word has length 75 [2021-10-28 09:37:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:49,546 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1227 transitions. [2021-10-28 09:37:49,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:37:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1227 transitions. [2021-10-28 09:37:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:37:49,549 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:49,549 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:49,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-28 09:37:49,549 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash -901263887, now seen corresponding path program 1 times [2021-10-28 09:37:49,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:49,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967262086] [2021-10-28 09:37:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:49,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:37:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 09:37:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 09:37:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 09:37:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 09:37:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 09:37:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-10-28 09:37:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:49,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:49,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967262086] [2021-10-28 09:37:49,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967262086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:49,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:49,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:37:49,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047016749] [2021-10-28 09:37:49,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:37:49,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:37:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:37:49,818 INFO L87 Difference]: Start difference. First operand 1013 states and 1227 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:51,129 INFO L93 Difference]: Finished difference Result 1061 states and 1293 transitions. [2021-10-28 09:37:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:51,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2021-10-28 09:37:51,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:51,131 INFO L225 Difference]: With dead ends: 1061 [2021-10-28 09:37:51,131 INFO L226 Difference]: Without dead ends: 1049 [2021-10-28 09:37:51,131 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:37:51,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-10-28 09:37:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 997. [2021-10-28 09:37:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 794 states have (on average 1.2317380352644836) internal successors, (978), 814 states have internal predecessors, (978), 97 states have call successors, (97), 79 states have call predecessors, (97), 105 states have return successors, (128), 108 states have call predecessors, (128), 91 states have call successors, (128) [2021-10-28 09:37:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1203 transitions. [2021-10-28 09:37:51,142 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1203 transitions. Word has length 73 [2021-10-28 09:37:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:51,142 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1203 transitions. [2021-10-28 09:37:51,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:37:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1203 transitions. [2021-10-28 09:37:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:37:51,145 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:51,146 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:51,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-28 09:37:51,146 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:51,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:51,146 INFO L85 PathProgramCache]: Analyzing trace with hash -586736919, now seen corresponding path program 1 times [2021-10-28 09:37:51,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:51,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720426311] [2021-10-28 09:37:51,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:51,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:51,160 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:51,254 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:51,254 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:37:51,255 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 09:37:51,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:37:51,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-28 09:37:51,261 INFO L731 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] [2021-10-28 09:37:51,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:37:51,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:37:51 BoogieIcfgContainer [2021-10-28 09:37:51,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:37:51,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:37:51,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:37:51,428 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:37:51,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:39" (3/4) ... [2021-10-28 09:37:51,433 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:37:51,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:37:51,435 INFO L168 Benchmark]: Toolchain (without parser) took 194722.66 ms. Allocated memory was 104.9 MB in the beginning and 293.6 MB in the end (delta: 188.7 MB). Free memory was 63.2 MB in the beginning and 147.8 MB in the end (delta: -84.6 MB). Peak memory consumption was 102.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:51,435 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:51,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.15 ms. Allocated memory is still 104.9 MB. Free memory was 62.9 MB in the beginning and 62.0 MB in the end (delta: 942.8 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:51,437 INFO L168 Benchmark]: Boogie Preprocessor took 158.97 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 56.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:51,438 INFO L168 Benchmark]: RCFGBuilder took 1569.38 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 56.4 MB in the beginning and 98.0 MB in the end (delta: -41.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:51,438 INFO L168 Benchmark]: TraceAbstraction took 192221.00 ms. Allocated memory was 130.0 MB in the beginning and 293.6 MB in the end (delta: 163.6 MB). Free memory was 97.0 MB in the beginning and 147.8 MB in the end (delta: -50.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:51,439 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 293.6 MB. Free memory is still 147.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:51,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 759.15 ms. Allocated memory is still 104.9 MB. Free memory was 62.9 MB in the beginning and 62.0 MB in the end (delta: 942.8 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 158.97 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 56.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1569.38 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 56.4 MB in the beginning and 98.0 MB in the end (delta: -41.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 192221.00 ms. Allocated memory was 130.0 MB in the beginning and 293.6 MB in the end (delta: 163.6 MB). Free memory was 97.0 MB in the beginning and 147.8 MB in the end (delta: -50.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 293.6 MB. Free memory is still 147.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 [\old(compFptr)=147534, \old(compRegistered)=147513, \old(customIrp)=147517, \old(DC)=147539, \old(DeviceUsageTypePaging)=147538, \old(Executive)=147536, \old(IPC)=147525, \old(KernelMode)=147521, \old(lowerDriverReturn)=147526, \old(MPR1)=147533, \old(MPR3)=147542, \old(myStatus)=147537, \old(NP)=147518, \old(pended)=147535, \old(pirp)=147540, \old(routine)=147514, \old(s)=147522, \old(setEventCalled)=147515, \old(SKIP1)=147520, \old(SKIP2)=147531, \old(Suspended)=147532, \old(UNLOADED)=147524, 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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=0, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1755] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=5, UNLOADED=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, 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() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, 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) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioHPCdrDeviceControl(DeviceObject, Irp)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioDeviceControl(devobj, pirp)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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] [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=1, pirp=-2, 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 31 procedures, 521 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 191.9s, OverallIterations: 70, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 166.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 40066 SDtfs, 74296 SDslu, 98929 SDs, 0 SdLazy, 175728 SolverSat, 26271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1883 GetRequests, 769 SyntacticMatches, 2 SemanticMatches, 1112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2773 ImplicationChecksByTransitivity, 27.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=66, InterpolantAutomatonStates: 913, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 69 MinimizatonAttempts, 8926 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 4193 NumberOfCodeBlocks, 4193 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 4050 ConstructedInterpolants, 0 QuantifiedInterpolants, 22435 SizeOfPredicates, 4 NumberOfNonLiveVariables, 871 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 70 InterpolantComputations, 68 PerfectInterpolantSequences, 5/8 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 [2021-10-28 09:37:51,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:37:54,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:37:54,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:37:54,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:37:54,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:37:54,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:37:54,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:37:54,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:37:54,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:37:54,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:37:54,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:37:54,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:37:54,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:37:54,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:37:54,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:37:54,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:37:54,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:37:54,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:37:54,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:37:54,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:37:54,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:37:54,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:37:54,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:37:54,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:37:54,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:37:54,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:37:54,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:37:54,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:37:54,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:37:54,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:37:54,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:37:54,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:37:54,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:37:54,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:37:54,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:37:54,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:37:54,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:37:54,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:37:54,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:37:54,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:37:54,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:37:54,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:37:54,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:37:54,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:37:54,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:37:54,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:37:54,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:37:54,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:37:54,238 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:37:54,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:37:54,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:37:54,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:37:54,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:37:54,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:37:54,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:37:54,240 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:37:54,240 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:37:54,241 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:37:54,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:37:54,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:37:54,241 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:37:54,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:37:54,242 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:37:54,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:37:54,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:37:54,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:37:54,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:37:54,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:37:54,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:37:54,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:37:54,244 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:37:54,244 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:37:54,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:37:54,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:37:54,245 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-10-28 09:37:54,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:37:54,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:37:54,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:37:54,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:37:54,666 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:37:54,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 09:37:54,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/f0682aa70/66b9f62e26734047977868c5fccf376c/FLAGf9f5753af [2021-10-28 09:37:55,603 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:37:55,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 09:37:55,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/f0682aa70/66b9f62e26734047977868c5fccf376c/FLAGf9f5753af [2021-10-28 09:37:55,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/data/f0682aa70/66b9f62e26734047977868c5fccf376c [2021-10-28 09:37:55,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:37:55,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:37:55,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:55,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:37:55,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:37:55,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:55" (1/1) ... [2021-10-28 09:37:55,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225a2995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:55, skipping insertion in model container [2021-10-28 09:37:55,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:55" (1/1) ... [2021-10-28 09:37:55,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:37:55,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:37:56,037 WARN L228 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 09:37:56,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:56,360 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:37:56,394 WARN L228 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_aeed53b3-b40d-4565-ae1c-b323b332f0e4/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 09:37:56,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:56,570 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:37:56,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56 WrapperNode [2021-10-28 09:37:56,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:56,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:37:56,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:37:56,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:37:56,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:37:56,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:37:56,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:37:56,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:37:56,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (1/1) ... [2021-10-28 09:37:56,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:37:56,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:56,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:37:56,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:37:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:37:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:37:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:37:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 09:37:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 09:37:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-10-28 09:37:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-10-28 09:37:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2021-10-28 09:37:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2021-10-28 09:37:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2021-10-28 09:37:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-10-28 09:37:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-10-28 09:37:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2021-10-28 09:37:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-10-28 09:37:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2021-10-28 09:37:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2021-10-28 09:37:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2021-10-28 09:37:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 09:37:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:37:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 09:37:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 09:37:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 09:37:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 09:37:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 09:37:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-10-28 09:37:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 09:37:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:37:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:37:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:37:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-10-28 09:37:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2021-10-28 09:37:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2021-10-28 09:37:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2021-10-28 09:37:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-10-28 09:37:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-10-28 09:37:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2021-10-28 09:37:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-10-28 09:37:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2021-10-28 09:37:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 09:37:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:37:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 09:37:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:37:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:37:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:37:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 09:37:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 09:37:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:37:57,436 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:57,517 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-10-28 09:37:57,518 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-10-28 09:37:57,524 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:57,571 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-10-28 09:37:57,571 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-10-28 09:37:57,617 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:57,635 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 09:37:57,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 09:37:57,708 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:57,772 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-10-28 09:37:57,777 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0bv32; [2021-10-28 09:37:57,778 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-10-28 09:37:57,782 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:58,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2021-10-28 09:37:58,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2021-10-28 09:37:58,032 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:58,067 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 09:37:58,067 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 09:37:58,122 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:58,157 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-10-28 09:37:58,158 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-10-28 09:37:58,162 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:58,369 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-10-28 09:37:58,369 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-10-28 09:37:58,383 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:37:58,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 09:37:58,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 09:37:58,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:37:58,429 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:37:58,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:58 BoogieIcfgContainer [2021-10-28 09:37:58,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:37:58,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:37:58,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:37:58,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:37:58,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:37:55" (1/3) ... [2021-10-28 09:37:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7886d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:58, skipping insertion in model container [2021-10-28 09:37:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:56" (2/3) ... [2021-10-28 09:37:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7886d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:58, skipping insertion in model container [2021-10-28 09:37:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:58" (3/3) ... [2021-10-28 09:37:58,442 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-10-28 09:37:58,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:37:58,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 09:37:58,495 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:37:58,507 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 [2021-10-28 09:37:58,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 09:37:58,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2021-10-28 09:37:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:37:58,558 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:58,559 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:58,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:58,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash 633313405, now seen corresponding path program 1 times [2021-10-28 09:37:58,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:58,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275913249] [2021-10-28 09:37:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:58,582 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:58,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:58,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:37:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:58,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:37:58,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:58,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:59,041 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:59,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275913249] [2021-10-28 09:37:59,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275913249] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:59,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:59,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-28 09:37:59,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644236995] [2021-10-28 09:37:59,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:37:59,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:37:59,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:37:59,076 INFO L87 Difference]: Start difference. First operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:59,180 INFO L93 Difference]: Finished difference Result 515 states and 755 transitions. [2021-10-28 09:37:59,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:37:59,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 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 15 [2021-10-28 09:37:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:59,201 INFO L225 Difference]: With dead ends: 515 [2021-10-28 09:37:59,202 INFO L226 Difference]: Without dead ends: 509 [2021-10-28 09:37:59,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:37:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-28 09:37:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2021-10-28 09:37:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4603174603174602) internal successors, (552), 397 states have internal predecessors, (552), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 09:37:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 741 transitions. [2021-10-28 09:37:59,298 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 741 transitions. Word has length 15 [2021-10-28 09:37:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:59,299 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 741 transitions. [2021-10-28 09:37:59,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 741 transitions. [2021-10-28 09:37:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:37:59,301 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:59,301 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:59,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:59,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:59,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:37:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1738610777, now seen corresponding path program 1 times [2021-10-28 09:37:59,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:59,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263878262] [2021-10-28 09:37:59,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:59,517 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:59,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:59,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:59,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:37:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:59,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:37:59,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:59,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:59,902 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:59,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263878262] [2021-10-28 09:37:59,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263878262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:59,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:59,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:37:59,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420537613] [2021-10-28 09:37:59,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:37:59,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:59,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:37:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:37:59,908 INFO L87 Difference]: Start difference. First operand 509 states and 741 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:38:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:00,081 INFO L93 Difference]: Finished difference Result 514 states and 747 transitions. [2021-10-28 09:38:00,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:00,082 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), 2 states have call successors, (4), 2 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 20 [2021-10-28 09:38:00,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:00,088 INFO L225 Difference]: With dead ends: 514 [2021-10-28 09:38:00,094 INFO L226 Difference]: Without dead ends: 509 [2021-10-28 09:38:00,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-28 09:38:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2021-10-28 09:38:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 09:38:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2021-10-28 09:38:00,159 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2021-10-28 09:38:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:00,160 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2021-10-28 09:38:00,160 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:38:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2021-10-28 09:38:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:38:00,162 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:00,162 INFO L513 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] [2021-10-28 09:38:00,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:00,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:00,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:00,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:00,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1016281706, now seen corresponding path program 1 times [2021-10-28 09:38:00,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:00,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560855556] [2021-10-28 09:38:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:00,375 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:00,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:00,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:00,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:38:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:00,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:38:00,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:00,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:01,026 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:01,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560855556] [2021-10-28 09:38:01,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560855556] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:01,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:01,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-28 09:38:01,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431006540] [2021-10-28 09:38:01,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:38:01,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:01,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:01,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:01,030 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:01,907 INFO L93 Difference]: Finished difference Result 675 states and 960 transitions. [2021-10-28 09:38:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2021-10-28 09:38:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:01,921 INFO L225 Difference]: With dead ends: 675 [2021-10-28 09:38:01,927 INFO L226 Difference]: Without dead ends: 674 [2021-10-28 09:38:01,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-10-28 09:38:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 654. [2021-10-28 09:38:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 494 states have (on average 1.4129554655870444) internal successors, (698), 501 states have internal predecessors, (698), 112 states have call successors, (112), 40 states have call predecessors, (112), 47 states have return successors, (124), 118 states have call predecessors, (124), 99 states have call successors, (124) [2021-10-28 09:38:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 934 transitions. [2021-10-28 09:38:01,987 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 934 transitions. Word has length 25 [2021-10-28 09:38:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:01,987 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 934 transitions. [2021-10-28 09:38:01,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 934 transitions. [2021-10-28 09:38:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 09:38:01,990 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:01,991 INFO L513 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] [2021-10-28 09:38:02,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 09:38:02,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:02,204 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1367852756, now seen corresponding path program 1 times [2021-10-28 09:38:02,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:02,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205821661] [2021-10-28 09:38:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:02,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:02,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:02,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:02,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:38:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:02,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:38:02,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:02,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:02,742 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:02,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205821661] [2021-10-28 09:38:02,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205821661] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:02,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:02,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:02,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693185250] [2021-10-28 09:38:02,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:02,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:02,746 INFO L87 Difference]: Start difference. First operand 654 states and 934 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:02,798 INFO L93 Difference]: Finished difference Result 823 states and 1156 transitions. [2021-10-28 09:38:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:02,799 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-10-28 09:38:02,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:02,807 INFO L225 Difference]: With dead ends: 823 [2021-10-28 09:38:02,807 INFO L226 Difference]: Without dead ends: 823 [2021-10-28 09:38:02,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:02,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-10-28 09:38:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 769. [2021-10-28 09:38:02,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 595 states have (on average 1.411764705882353) internal successors, (840), 597 states have internal predecessors, (840), 114 states have call successors, (114), 46 states have call predecessors, (114), 59 states have return successors, (140), 128 states have call predecessors, (140), 104 states have call successors, (140) [2021-10-28 09:38:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1094 transitions. [2021-10-28 09:38:02,873 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1094 transitions. Word has length 30 [2021-10-28 09:38:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:02,874 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1094 transitions. [2021-10-28 09:38:02,874 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1094 transitions. [2021-10-28 09:38:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:38:02,883 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:02,884 INFO L513 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] [2021-10-28 09:38:02,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:03,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:03,098 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:03,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1062919399, now seen corresponding path program 1 times [2021-10-28 09:38:03,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:03,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022650133] [2021-10-28 09:38:03,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:03,100 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:03,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:03,101 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:03,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:38:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:03,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:38:03,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:03,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:03,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:03,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022650133] [2021-10-28 09:38:03,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022650133] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:03,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:03,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:38:03,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629850242] [2021-10-28 09:38:03,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:38:03,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:03,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:38:03,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:03,900 INFO L87 Difference]: Start difference. First operand 769 states and 1094 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:38:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:05,058 INFO L93 Difference]: Finished difference Result 910 states and 1290 transitions. [2021-10-28 09:38:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:38:05,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2021-10-28 09:38:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:05,065 INFO L225 Difference]: With dead ends: 910 [2021-10-28 09:38:05,065 INFO L226 Difference]: Without dead ends: 910 [2021-10-28 09:38:05,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:38:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-28 09:38:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 815. [2021-10-28 09:38:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 633 states have (on average 1.4060031595576619) internal successors, (890), 635 states have internal predecessors, (890), 118 states have call successors, (118), 50 states have call predecessors, (118), 63 states have return successors, (154), 132 states have call predecessors, (154), 108 states have call successors, (154) [2021-10-28 09:38:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1162 transitions. [2021-10-28 09:38:05,103 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1162 transitions. Word has length 31 [2021-10-28 09:38:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:05,103 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1162 transitions. [2021-10-28 09:38:05,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:38:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1162 transitions. [2021-10-28 09:38:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 09:38:05,107 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:05,107 INFO L513 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] [2021-10-28 09:38:05,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:05,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:05,320 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1821153895, now seen corresponding path program 1 times [2021-10-28 09:38:05,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:05,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051002065] [2021-10-28 09:38:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:05,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:05,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:05,323 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:05,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:38:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:05,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:38:05,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:05,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:05,967 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:05,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051002065] [2021-10-28 09:38:05,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051002065] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:05,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:05,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-28 09:38:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071063856] [2021-10-28 09:38:05,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:38:05,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:05,970 INFO L87 Difference]: Start difference. First operand 815 states and 1162 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:06,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:06,715 INFO L93 Difference]: Finished difference Result 814 states and 1159 transitions. [2021-10-28 09:38:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-10-28 09:38:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:06,723 INFO L225 Difference]: With dead ends: 814 [2021-10-28 09:38:06,723 INFO L226 Difference]: Without dead ends: 814 [2021-10-28 09:38:06,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:06,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-10-28 09:38:06,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2021-10-28 09:38:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 633 states have (on average 1.4028436018957346) internal successors, (888), 634 states have internal predecessors, (888), 117 states have call successors, (117), 50 states have call predecessors, (117), 63 states have return successors, (154), 132 states have call predecessors, (154), 108 states have call successors, (154) [2021-10-28 09:38:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1159 transitions. [2021-10-28 09:38:06,763 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1159 transitions. Word has length 36 [2021-10-28 09:38:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:06,765 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1159 transitions. [2021-10-28 09:38:06,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1159 transitions. [2021-10-28 09:38:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 09:38:06,768 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:06,768 INFO L513 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] [2021-10-28 09:38:06,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:06,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:06,984 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash -591738262, now seen corresponding path program 1 times [2021-10-28 09:38:06,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:06,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847413359] [2021-10-28 09:38:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:06,985 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:06,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:06,986 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:06,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:38:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:07,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:07,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:07,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:07,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:07,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847413359] [2021-10-28 09:38:07,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847413359] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:07,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:07,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 09:38:07,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070056833] [2021-10-28 09:38:07,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:38:07,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:38:07,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:38:07,547 INFO L87 Difference]: Start difference. First operand 814 states and 1159 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:07,668 INFO L93 Difference]: Finished difference Result 1008 states and 1397 transitions. [2021-10-28 09:38:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:38:07,669 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), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-10-28 09:38:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:07,677 INFO L225 Difference]: With dead ends: 1008 [2021-10-28 09:38:07,677 INFO L226 Difference]: Without dead ends: 1008 [2021-10-28 09:38:07,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:38:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-10-28 09:38:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 828. [2021-10-28 09:38:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 651 states have (on average 1.400921658986175) internal successors, (912), 653 states have internal predecessors, (912), 112 states have call successors, (112), 50 states have call predecessors, (112), 64 states have return successors, (149), 127 states have call predecessors, (149), 103 states have call successors, (149) [2021-10-28 09:38:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1173 transitions. [2021-10-28 09:38:07,717 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1173 transitions. Word has length 39 [2021-10-28 09:38:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1173 transitions. [2021-10-28 09:38:07,718 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), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1173 transitions. [2021-10-28 09:38:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:38:07,720 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:07,720 INFO L513 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] [2021-10-28 09:38:07,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:07,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:07,935 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:07,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:07,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1528077449, now seen corresponding path program 1 times [2021-10-28 09:38:07,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:07,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381032928] [2021-10-28 09:38:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:07,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:07,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:07,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:07,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:38:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:08,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:38:08,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:08,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:08,641 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:08,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381032928] [2021-10-28 09:38:08,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381032928] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:08,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:08,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:08,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854001152] [2021-10-28 09:38:08,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:08,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:08,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:08,644 INFO L87 Difference]: Start difference. First operand 828 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:08,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:08,695 INFO L93 Difference]: Finished difference Result 910 states and 1272 transitions. [2021-10-28 09:38:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:08,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-10-28 09:38:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:08,703 INFO L225 Difference]: With dead ends: 910 [2021-10-28 09:38:08,703 INFO L226 Difference]: Without dead ends: 910 [2021-10-28 09:38:08,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-28 09:38:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 854. [2021-10-28 09:38:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 675 states have (on average 1.4103703703703703) internal successors, (952), 686 states have internal predecessors, (952), 114 states have call successors, (114), 53 states have call predecessors, (114), 64 states have return successors, (142), 119 states have call predecessors, (142), 106 states have call successors, (142) [2021-10-28 09:38:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1208 transitions. [2021-10-28 09:38:08,740 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1208 transitions. Word has length 40 [2021-10-28 09:38:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:08,740 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1208 transitions. [2021-10-28 09:38:08,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1208 transitions. [2021-10-28 09:38:08,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-28 09:38:08,744 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:08,744 INFO L513 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] [2021-10-28 09:38:08,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-28 09:38:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:08,961 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash -751837642, now seen corresponding path program 1 times [2021-10-28 09:38:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:08,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434444296] [2021-10-28 09:38:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:08,962 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:08,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:08,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:08,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:38:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:09,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:09,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:09,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:09,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:09,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434444296] [2021-10-28 09:38:09,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434444296] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:09,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:09,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-10-28 09:38:09,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070373240] [2021-10-28 09:38:09,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:38:09,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:09,575 INFO L87 Difference]: Start difference. First operand 854 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:38:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:10,066 INFO L93 Difference]: Finished difference Result 766 states and 1066 transitions. [2021-10-28 09:38:10,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:38:10,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2021-10-28 09:38:10,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:10,072 INFO L225 Difference]: With dead ends: 766 [2021-10-28 09:38:10,072 INFO L226 Difference]: Without dead ends: 766 [2021-10-28 09:38:10,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-28 09:38:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 732. [2021-10-28 09:38:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 572 states have (on average 1.4038461538461537) internal successors, (803), 583 states have internal predecessors, (803), 106 states have call successors, (106), 46 states have call predecessors, (106), 53 states have return successors, (119), 107 states have call predecessors, (119), 98 states have call successors, (119) [2021-10-28 09:38:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1028 transitions. [2021-10-28 09:38:10,102 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1028 transitions. Word has length 47 [2021-10-28 09:38:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:10,102 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1028 transitions. [2021-10-28 09:38:10,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:38:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1028 transitions. [2021-10-28 09:38:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-28 09:38:10,108 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:10,108 INFO L513 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] [2021-10-28 09:38:10,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:10,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:10,323 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1459738846, now seen corresponding path program 1 times [2021-10-28 09:38:10,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:10,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522631222] [2021-10-28 09:38:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:10,325 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:10,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:10,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:10,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:38:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:10,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:10,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:10,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:10,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:10,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522631222] [2021-10-28 09:38:10,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522631222] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:10,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:10,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:10,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828553184] [2021-10-28 09:38:10,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:10,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:10,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:10,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:10,936 INFO L87 Difference]: Start difference. First operand 732 states and 1028 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:10,962 INFO L93 Difference]: Finished difference Result 756 states and 1052 transitions. [2021-10-28 09:38:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:10,963 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), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2021-10-28 09:38:10,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:10,968 INFO L225 Difference]: With dead ends: 756 [2021-10-28 09:38:10,968 INFO L226 Difference]: Without dead ends: 756 [2021-10-28 09:38:10,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:10,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-10-28 09:38:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 731. [2021-10-28 09:38:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 571 states have (on average 1.4010507880910683) internal successors, (800), 582 states have internal predecessors, (800), 106 states have call successors, (106), 46 states have call predecessors, (106), 53 states have return successors, (117), 107 states have call predecessors, (117), 98 states have call successors, (117) [2021-10-28 09:38:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1023 transitions. [2021-10-28 09:38:10,995 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1023 transitions. Word has length 47 [2021-10-28 09:38:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:10,995 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 1023 transitions. [2021-10-28 09:38:10,995 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), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:38:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1023 transitions. [2021-10-28 09:38:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 09:38:10,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:10,999 INFO L513 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] [2021-10-28 09:38:11,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:11,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:11,217 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1711019189, now seen corresponding path program 1 times [2021-10-28 09:38:11,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:11,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596214780] [2021-10-28 09:38:11,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:11,219 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:11,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:11,220 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:11,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:38:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:11,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:38:11,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:12,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:12,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:12,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596214780] [2021-10-28 09:38:12,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596214780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:12,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:12,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-28 09:38:12,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820420186] [2021-10-28 09:38:12,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:38:12,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:38:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:38:12,435 INFO L87 Difference]: Start difference. First operand 731 states and 1023 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-28 09:38:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:14,278 INFO L93 Difference]: Finished difference Result 1001 states and 1433 transitions. [2021-10-28 09:38:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:38:14,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 48 [2021-10-28 09:38:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:14,287 INFO L225 Difference]: With dead ends: 1001 [2021-10-28 09:38:14,287 INFO L226 Difference]: Without dead ends: 1001 [2021-10-28 09:38:14,287 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:38:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-28 09:38:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 794. [2021-10-28 09:38:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3948635634028892) internal successors, (869), 635 states have internal predecessors, (869), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 09:38:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1110 transitions. [2021-10-28 09:38:14,341 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1110 transitions. Word has length 48 [2021-10-28 09:38:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:14,342 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1110 transitions. [2021-10-28 09:38:14,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-28 09:38:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1110 transitions. [2021-10-28 09:38:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:38:14,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:14,347 INFO L513 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] [2021-10-28 09:38:14,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:14,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:14,560 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash -17559376, now seen corresponding path program 1 times [2021-10-28 09:38:14,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:14,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499713909] [2021-10-28 09:38:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:14,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:14,562 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:14,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 09:38:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:15,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:38:15,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:15,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:15,793 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:15,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499713909] [2021-10-28 09:38:15,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499713909] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:15,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:15,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-28 09:38:15,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756065011] [2021-10-28 09:38:15,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:38:15,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:15,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:38:15,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:38:15,795 INFO L87 Difference]: Start difference. First operand 794 states and 1110 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-28 09:38:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:17,589 INFO L93 Difference]: Finished difference Result 914 states and 1318 transitions. [2021-10-28 09:38:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:38:17,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 50 [2021-10-28 09:38:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:17,595 INFO L225 Difference]: With dead ends: 914 [2021-10-28 09:38:17,595 INFO L226 Difference]: Without dead ends: 914 [2021-10-28 09:38:17,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:38:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-28 09:38:17,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2021-10-28 09:38:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.3896940418679549) internal successors, (863), 633 states have internal predecessors, (863), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 09:38:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1104 transitions. [2021-10-28 09:38:17,629 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1104 transitions. Word has length 50 [2021-10-28 09:38:17,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:17,630 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1104 transitions. [2021-10-28 09:38:17,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-28 09:38:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1104 transitions. [2021-10-28 09:38:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:38:17,633 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:17,633 INFO L513 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] [2021-10-28 09:38:17,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-10-28 09:38:17,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:17,848 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1865011280, now seen corresponding path program 1 times [2021-10-28 09:38:17,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:17,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807751521] [2021-10-28 09:38:17,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:17,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:17,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:17,850 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:17,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 09:38:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:18,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:18,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:18,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:18,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:18,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807751521] [2021-10-28 09:38:18,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807751521] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:18,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:18,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:18,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751641506] [2021-10-28 09:38:18,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:18,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:18,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:18,548 INFO L87 Difference]: Start difference. First operand 792 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-28 09:38:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:18,658 INFO L93 Difference]: Finished difference Result 954 states and 1318 transitions. [2021-10-28 09:38:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:18,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 50 [2021-10-28 09:38:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:18,665 INFO L225 Difference]: With dead ends: 954 [2021-10-28 09:38:18,665 INFO L226 Difference]: Without dead ends: 954 [2021-10-28 09:38:18,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2021-10-28 09:38:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 848. [2021-10-28 09:38:18,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3710407239819005) internal successors, (909), 677 states have internal predecessors, (909), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-28 09:38:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1164 transitions. [2021-10-28 09:38:18,699 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1164 transitions. Word has length 50 [2021-10-28 09:38:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:18,699 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1164 transitions. [2021-10-28 09:38:18,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-28 09:38:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1164 transitions. [2021-10-28 09:38:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 09:38:18,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:18,703 INFO L513 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] [2021-10-28 09:38:18,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:18,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:18,918 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:18,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash -540904097, now seen corresponding path program 1 times [2021-10-28 09:38:18,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:18,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827360331] [2021-10-28 09:38:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:18,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:18,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:18,921 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:18,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 09:38:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:19,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:38:19,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:19,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:19,747 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:19,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827360331] [2021-10-28 09:38:19,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827360331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:19,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:19,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:38:19,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743195747] [2021-10-28 09:38:19,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:38:19,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:19,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:19,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:19,750 INFO L87 Difference]: Start difference. First operand 848 states and 1164 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:38:19,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:19,971 INFO L93 Difference]: Finished difference Result 882 states and 1209 transitions. [2021-10-28 09:38:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:38:19,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-10-28 09:38:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:19,978 INFO L225 Difference]: With dead ends: 882 [2021-10-28 09:38:19,978 INFO L226 Difference]: Without dead ends: 882 [2021-10-28 09:38:19,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-10-28 09:38:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 854. [2021-10-28 09:38:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 669 states have (on average 1.3721973094170403) internal successors, (918), 683 states have internal predecessors, (918), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-28 09:38:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1173 transitions. [2021-10-28 09:38:20,013 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1173 transitions. Word has length 52 [2021-10-28 09:38:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:20,014 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1173 transitions. [2021-10-28 09:38:20,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:38:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1173 transitions. [2021-10-28 09:38:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 09:38:20,017 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:20,017 INFO L513 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] [2021-10-28 09:38:20,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:20,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:20,231 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:20,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:20,231 INFO L85 PathProgramCache]: Analyzing trace with hash -400355487, now seen corresponding path program 1 times [2021-10-28 09:38:20,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:20,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558706328] [2021-10-28 09:38:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:20,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:20,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:20,233 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:20,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 09:38:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:20,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:20,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:20,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:21,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:21,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558706328] [2021-10-28 09:38:21,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558706328] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:21,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:21,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:21,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948526158] [2021-10-28 09:38:21,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:21,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:21,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:21,052 INFO L87 Difference]: Start difference. First operand 854 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:21,144 INFO L93 Difference]: Finished difference Result 877 states and 1199 transitions. [2021-10-28 09:38:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:21,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-10-28 09:38:21,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:21,149 INFO L225 Difference]: With dead ends: 877 [2021-10-28 09:38:21,150 INFO L226 Difference]: Without dead ends: 877 [2021-10-28 09:38:21,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:21,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-10-28 09:38:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 873. [2021-10-28 09:38:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 685 states have (on average 1.3693430656934307) internal successors, (938), 700 states have internal predecessors, (938), 113 states have call successors, (113), 52 states have call predecessors, (113), 74 states have return successors, (145), 128 states have call predecessors, (145), 105 states have call successors, (145) [2021-10-28 09:38:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1196 transitions. [2021-10-28 09:38:21,183 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1196 transitions. Word has length 52 [2021-10-28 09:38:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:21,183 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1196 transitions. [2021-10-28 09:38:21,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1196 transitions. [2021-10-28 09:38:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:38:21,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:21,187 INFO L513 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] [2021-10-28 09:38:21,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:21,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:21,400 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:21,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1037319808, now seen corresponding path program 1 times [2021-10-28 09:38:21,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:21,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552668788] [2021-10-28 09:38:21,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:21,401 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:21,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:21,401 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:21,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 09:38:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:21,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:38:21,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:22,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:22,340 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:22,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552668788] [2021-10-28 09:38:22,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552668788] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:22,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:22,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-28 09:38:22,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532136007] [2021-10-28 09:38:22,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:38:22,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:22,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:38:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:38:22,343 INFO L87 Difference]: Start difference. First operand 873 states and 1196 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:38:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:23,399 INFO L93 Difference]: Finished difference Result 1555 states and 2148 transitions. [2021-10-28 09:38:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:38:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2021-10-28 09:38:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:23,409 INFO L225 Difference]: With dead ends: 1555 [2021-10-28 09:38:23,409 INFO L226 Difference]: Without dead ends: 1555 [2021-10-28 09:38:23,409 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:38:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2021-10-28 09:38:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1345. [2021-10-28 09:38:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1056 states have (on average 1.3806818181818181) internal successors, (1458), 1090 states have internal predecessors, (1458), 176 states have call successors, (176), 84 states have call predecessors, (176), 112 states have return successors, (236), 176 states have call predecessors, (236), 168 states have call successors, (236) [2021-10-28 09:38:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1870 transitions. [2021-10-28 09:38:23,471 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1870 transitions. Word has length 54 [2021-10-28 09:38:23,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:23,471 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 1870 transitions. [2021-10-28 09:38:23,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:38:23,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1870 transitions. [2021-10-28 09:38:23,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:38:23,476 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:23,476 INFO L513 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] [2021-10-28 09:38:23,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:23,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:23,692 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -219767481, now seen corresponding path program 1 times [2021-10-28 09:38:23,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:23,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356196281] [2021-10-28 09:38:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:23,692 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:23,693 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:23,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-28 09:38:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:24,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:24,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:24,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:24,476 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:24,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356196281] [2021-10-28 09:38:24,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356196281] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:24,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:24,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:24,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191647213] [2021-10-28 09:38:24,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:24,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:24,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:24,478 INFO L87 Difference]: Start difference. First operand 1345 states and 1870 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:24,547 INFO L93 Difference]: Finished difference Result 1342 states and 1863 transitions. [2021-10-28 09:38:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-10-28 09:38:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:24,554 INFO L225 Difference]: With dead ends: 1342 [2021-10-28 09:38:24,554 INFO L226 Difference]: Without dead ends: 1342 [2021-10-28 09:38:24,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-10-28 09:38:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2021-10-28 09:38:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1054 states have (on average 1.3776091081593929) internal successors, (1452), 1087 states have internal predecessors, (1452), 175 states have call successors, (175), 84 states have call predecessors, (175), 112 states have return successors, (236), 176 states have call predecessors, (236), 168 states have call successors, (236) [2021-10-28 09:38:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1863 transitions. [2021-10-28 09:38:24,616 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1863 transitions. Word has length 56 [2021-10-28 09:38:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:24,617 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1863 transitions. [2021-10-28 09:38:24,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1863 transitions. [2021-10-28 09:38:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:38:24,623 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:24,623 INFO L513 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] [2021-10-28 09:38:24,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:24,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:24,836 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:24,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1536910814, now seen corresponding path program 1 times [2021-10-28 09:38:24,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:24,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840179248] [2021-10-28 09:38:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:24,837 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:24,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:24,838 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:24,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-28 09:38:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:25,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:38:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:25,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:26,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:26,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840179248] [2021-10-28 09:38:26,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840179248] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:26,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:26,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-10-28 09:38:26,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894166247] [2021-10-28 09:38:26,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:38:26,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:38:26,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:38:26,040 INFO L87 Difference]: Start difference. First operand 1342 states and 1863 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:38:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:26,256 INFO L93 Difference]: Finished difference Result 1375 states and 1899 transitions. [2021-10-28 09:38:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:38:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2021-10-28 09:38:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:26,263 INFO L225 Difference]: With dead ends: 1375 [2021-10-28 09:38:26,264 INFO L226 Difference]: Without dead ends: 1352 [2021-10-28 09:38:26,264 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:38:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-10-28 09:38:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1348. [2021-10-28 09:38:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1059 states have (on average 1.3758262511803587) internal successors, (1457), 1093 states have internal predecessors, (1457), 176 states have call successors, (176), 84 states have call predecessors, (176), 112 states have return successors, (237), 177 states have call predecessors, (237), 169 states have call successors, (237) [2021-10-28 09:38:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1870 transitions. [2021-10-28 09:38:26,309 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1870 transitions. Word has length 51 [2021-10-28 09:38:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:26,310 INFO L470 AbstractCegarLoop]: Abstraction has 1348 states and 1870 transitions. [2021-10-28 09:38:26,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:38:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1870 transitions. [2021-10-28 09:38:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 09:38:26,314 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:26,315 INFO L513 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] [2021-10-28 09:38:26,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:26,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:26,528 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 917468979, now seen corresponding path program 1 times [2021-10-28 09:38:26,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:26,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012137277] [2021-10-28 09:38:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:26,529 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:26,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:26,530 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:26,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-28 09:38:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:27,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:38:27,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:27,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:27,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:27,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012137277] [2021-10-28 09:38:27,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012137277] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:27,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:27,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:38:27,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106558141] [2021-10-28 09:38:27,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:38:27,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:27,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:27,664 INFO L87 Difference]: Start difference. First operand 1348 states and 1870 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:28,201 INFO L93 Difference]: Finished difference Result 1361 states and 1881 transitions. [2021-10-28 09:38:28,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:28,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 53 [2021-10-28 09:38:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:28,209 INFO L225 Difference]: With dead ends: 1361 [2021-10-28 09:38:28,210 INFO L226 Difference]: Without dead ends: 1329 [2021-10-28 09:38:28,210 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-10-28 09:38:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1321. [2021-10-28 09:38:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1037 states have (on average 1.3799421407907426) internal successors, (1431), 1070 states have internal predecessors, (1431), 173 states have call successors, (173), 82 states have call predecessors, (173), 110 states have return successors, (234), 174 states have call predecessors, (234), 166 states have call successors, (234) [2021-10-28 09:38:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1838 transitions. [2021-10-28 09:38:28,269 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1838 transitions. Word has length 53 [2021-10-28 09:38:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:28,269 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1838 transitions. [2021-10-28 09:38:28,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1838 transitions. [2021-10-28 09:38:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:38:28,275 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:28,276 INFO L513 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] [2021-10-28 09:38:28,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:28,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:28,492 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:28,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:28,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2039712262, now seen corresponding path program 1 times [2021-10-28 09:38:28,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:28,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907996704] [2021-10-28 09:38:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:28,494 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:28,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:28,495 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:28,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-28 09:38:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:29,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:38:29,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:29,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:29,734 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:29,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907996704] [2021-10-28 09:38:29,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907996704] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:29,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:29,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:38:29,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343134945] [2021-10-28 09:38:29,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:38:29,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:29,737 INFO L87 Difference]: Start difference. First operand 1321 states and 1838 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:30,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:30,372 INFO L93 Difference]: Finished difference Result 1515 states and 2117 transitions. [2021-10-28 09:38:30,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:30,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2021-10-28 09:38:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:30,379 INFO L225 Difference]: With dead ends: 1515 [2021-10-28 09:38:30,380 INFO L226 Difference]: Without dead ends: 1513 [2021-10-28 09:38:30,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2021-10-28 09:38:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1314. [2021-10-28 09:38:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1031 states have (on average 1.3743937924345295) internal successors, (1417), 1063 states have internal predecessors, (1417), 172 states have call successors, (172), 82 states have call predecessors, (172), 110 states have return successors, (234), 174 states have call predecessors, (234), 166 states have call successors, (234) [2021-10-28 09:38:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1823 transitions. [2021-10-28 09:38:30,423 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1823 transitions. Word has length 54 [2021-10-28 09:38:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:30,423 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1823 transitions. [2021-10-28 09:38:30,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1823 transitions. [2021-10-28 09:38:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:38:30,428 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:30,428 INFO L513 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] [2021-10-28 09:38:30,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:30,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:30,644 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:30,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:30,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1364295162, now seen corresponding path program 1 times [2021-10-28 09:38:30,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:30,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359203936] [2021-10-28 09:38:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:30,645 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:30,646 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:30,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-28 09:38:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:31,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:38:31,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:31,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:31,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:31,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359203936] [2021-10-28 09:38:31,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359203936] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:31,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:31,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-28 09:38:31,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198513360] [2021-10-28 09:38:31,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:38:31,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:38:31,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:38:31,757 INFO L87 Difference]: Start difference. First operand 1314 states and 1823 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:38:32,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:32,190 INFO L93 Difference]: Finished difference Result 1377 states and 1903 transitions. [2021-10-28 09:38:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:38:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2021-10-28 09:38:32,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:32,197 INFO L225 Difference]: With dead ends: 1377 [2021-10-28 09:38:32,198 INFO L226 Difference]: Without dead ends: 1257 [2021-10-28 09:38:32,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:38:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2021-10-28 09:38:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1252. [2021-10-28 09:38:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 983 states have (on average 1.3326551373346898) internal successors, (1310), 1014 states have internal predecessors, (1310), 158 states have call successors, (158), 82 states have call predecessors, (158), 110 states have return successors, (220), 161 states have call predecessors, (220), 152 states have call successors, (220) [2021-10-28 09:38:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1688 transitions. [2021-10-28 09:38:32,255 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1688 transitions. Word has length 55 [2021-10-28 09:38:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:32,256 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1688 transitions. [2021-10-28 09:38:32,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 09:38:32,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1688 transitions. [2021-10-28 09:38:32,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:38:32,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:32,263 INFO L513 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] [2021-10-28 09:38:32,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:32,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:32,478 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:32,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash 149703456, now seen corresponding path program 1 times [2021-10-28 09:38:32,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:32,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428576592] [2021-10-28 09:38:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:32,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:32,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:32,480 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:32,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-28 09:38:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:33,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:38:33,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:33,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:33,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:33,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428576592] [2021-10-28 09:38:33,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428576592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:33,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:33,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-10-28 09:38:33,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545933080] [2021-10-28 09:38:33,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:38:33,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:38:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:38:33,857 INFO L87 Difference]: Start difference. First operand 1252 states and 1688 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:34,306 INFO L93 Difference]: Finished difference Result 1332 states and 1786 transitions. [2021-10-28 09:38:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:38:34,307 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 56 [2021-10-28 09:38:34,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:34,314 INFO L225 Difference]: With dead ends: 1332 [2021-10-28 09:38:34,314 INFO L226 Difference]: Without dead ends: 1296 [2021-10-28 09:38:34,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:38:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2021-10-28 09:38:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1254. [2021-10-28 09:38:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 987 states have (on average 1.331306990881459) internal successors, (1314), 1018 states have internal predecessors, (1314), 156 states have call successors, (156), 82 states have call predecessors, (156), 110 states have return successors, (218), 159 states have call predecessors, (218), 150 states have call successors, (218) [2021-10-28 09:38:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1688 transitions. [2021-10-28 09:38:34,354 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1688 transitions. Word has length 56 [2021-10-28 09:38:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:34,354 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 1688 transitions. [2021-10-28 09:38:34,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1688 transitions. [2021-10-28 09:38:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:38:34,359 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:34,359 INFO L513 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] [2021-10-28 09:38:34,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:34,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:34,576 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:34,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1617706055, now seen corresponding path program 1 times [2021-10-28 09:38:34,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:34,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086992076] [2021-10-28 09:38:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:34,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:34,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:34,577 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:34,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-28 09:38:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:35,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:38:35,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:35,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:35,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:35,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086992076] [2021-10-28 09:38:35,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086992076] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:35,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:35,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-10-28 09:38:35,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538864716] [2021-10-28 09:38:35,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:38:35,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:35,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:38:35,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:38:35,942 INFO L87 Difference]: Start difference. First operand 1254 states and 1688 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:36,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:36,411 INFO L93 Difference]: Finished difference Result 1323 states and 1771 transitions. [2021-10-28 09:38:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:38:36,412 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 55 [2021-10-28 09:38:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:36,419 INFO L225 Difference]: With dead ends: 1323 [2021-10-28 09:38:36,419 INFO L226 Difference]: Without dead ends: 1287 [2021-10-28 09:38:36,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:38:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-10-28 09:38:36,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1245. [2021-10-28 09:38:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 982 states have (on average 1.3309572301425663) internal successors, (1307), 1012 states have internal predecessors, (1307), 154 states have call successors, (154), 82 states have call predecessors, (154), 108 states have return successors, (214), 156 states have call predecessors, (214), 148 states have call successors, (214) [2021-10-28 09:38:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1675 transitions. [2021-10-28 09:38:36,467 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1675 transitions. Word has length 55 [2021-10-28 09:38:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:36,467 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 1675 transitions. [2021-10-28 09:38:36,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1675 transitions. [2021-10-28 09:38:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 09:38:36,472 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:36,472 INFO L513 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] [2021-10-28 09:38:36,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:36,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:36,688 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 209841830, now seen corresponding path program 1 times [2021-10-28 09:38:36,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:36,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140463483] [2021-10-28 09:38:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:36,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:36,690 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:36,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-28 09:38:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:37,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:38:37,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:37,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:37,784 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:37,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140463483] [2021-10-28 09:38:37,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140463483] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:37,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:37,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 09:38:37,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34986149] [2021-10-28 09:38:37,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:38:37,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:37,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:37,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:37,786 INFO L87 Difference]: Start difference. First operand 1245 states and 1675 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:37,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:37,823 INFO L93 Difference]: Finished difference Result 1231 states and 1653 transitions. [2021-10-28 09:38:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:38:37,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2021-10-28 09:38:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:37,830 INFO L225 Difference]: With dead ends: 1231 [2021-10-28 09:38:37,831 INFO L226 Difference]: Without dead ends: 1231 [2021-10-28 09:38:37,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:38:37,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2021-10-28 09:38:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1231. [2021-10-28 09:38:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 968 states have (on average 1.3274793388429753) internal successors, (1285), 998 states have internal predecessors, (1285), 154 states have call successors, (154), 82 states have call predecessors, (154), 108 states have return successors, (214), 156 states have call predecessors, (214), 148 states have call successors, (214) [2021-10-28 09:38:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1653 transitions. [2021-10-28 09:38:37,864 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1653 transitions. Word has length 61 [2021-10-28 09:38:37,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:37,865 INFO L470 AbstractCegarLoop]: Abstraction has 1231 states and 1653 transitions. [2021-10-28 09:38:37,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 09:38:37,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1653 transitions. [2021-10-28 09:38:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 09:38:37,869 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:37,870 INFO L513 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] [2021-10-28 09:38:37,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:38,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:38,076 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:38,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1650252631, now seen corresponding path program 1 times [2021-10-28 09:38:38,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:38,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484239003] [2021-10-28 09:38:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:38,077 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:38,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:38,078 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:38,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-28 09:38:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:38,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:38:38,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:39,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:39,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:39,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484239003] [2021-10-28 09:38:39,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484239003] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:39,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:39,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-28 09:38:39,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435491183] [2021-10-28 09:38:39,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:38:39,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:39,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:38:39,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:38:39,284 INFO L87 Difference]: Start difference. First operand 1231 states and 1653 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:38:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:39,474 INFO L93 Difference]: Finished difference Result 1251 states and 1684 transitions. [2021-10-28 09:38:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:38:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 59 [2021-10-28 09:38:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:39,485 INFO L225 Difference]: With dead ends: 1251 [2021-10-28 09:38:39,486 INFO L226 Difference]: Without dead ends: 1251 [2021-10-28 09:38:39,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:39,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2021-10-28 09:38:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1243. [2021-10-28 09:38:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 976 states have (on average 1.3278688524590163) internal successors, (1296), 1009 states have internal predecessors, (1296), 157 states have call successors, (157), 82 states have call predecessors, (157), 109 states have return successors, (220), 157 states have call predecessors, (220), 151 states have call successors, (220) [2021-10-28 09:38:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1673 transitions. [2021-10-28 09:38:39,527 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1673 transitions. Word has length 59 [2021-10-28 09:38:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:39,528 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 1673 transitions. [2021-10-28 09:38:39,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:38:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1673 transitions. [2021-10-28 09:38:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 09:38:39,532 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:39,533 INFO L513 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] [2021-10-28 09:38:39,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:39,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:39,750 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:39,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:39,750 INFO L85 PathProgramCache]: Analyzing trace with hash 990509289, now seen corresponding path program 1 times [2021-10-28 09:38:39,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:39,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112722146] [2021-10-28 09:38:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:39,751 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:39,751 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:39,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-28 09:38:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:40,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:38:40,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:40,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:41,310 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:41,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112722146] [2021-10-28 09:38:41,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112722146] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:41,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:41,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-28 09:38:41,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981542400] [2021-10-28 09:38:41,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:38:41,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:41,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:38:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:38:41,312 INFO L87 Difference]: Start difference. First operand 1243 states and 1673 transitions. Second operand has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:41,847 INFO L93 Difference]: Finished difference Result 1292 states and 1735 transitions. [2021-10-28 09:38:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:38:41,848 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 59 [2021-10-28 09:38:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:41,856 INFO L225 Difference]: With dead ends: 1292 [2021-10-28 09:38:41,857 INFO L226 Difference]: Without dead ends: 1241 [2021-10-28 09:38:41,857 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:38:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-10-28 09:38:41,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1238. [2021-10-28 09:38:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 971 states have (on average 1.2996910401647785) internal successors, (1262), 1004 states have internal predecessors, (1262), 157 states have call successors, (157), 82 states have call predecessors, (157), 109 states have return successors, (220), 157 states have call predecessors, (220), 151 states have call successors, (220) [2021-10-28 09:38:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1639 transitions. [2021-10-28 09:38:41,889 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1639 transitions. Word has length 59 [2021-10-28 09:38:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:41,889 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1639 transitions. [2021-10-28 09:38:41,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1639 transitions. [2021-10-28 09:38:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:38:41,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:41,894 INFO L513 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] [2021-10-28 09:38:41,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:42,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:42,110 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash 846257089, now seen corresponding path program 1 times [2021-10-28 09:38:42,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:42,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819285345] [2021-10-28 09:38:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:42,111 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:42,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:42,112 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:42,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-28 09:38:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:42,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:38:42,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:43,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:43,597 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:43,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819285345] [2021-10-28 09:38:43,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819285345] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:43,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:43,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 21 [2021-10-28 09:38:43,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807153445] [2021-10-28 09:38:43,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:38:43,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:38:43,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:38:43,599 INFO L87 Difference]: Start difference. First operand 1238 states and 1639 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:44,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:44,005 INFO L93 Difference]: Finished difference Result 1314 states and 1727 transitions. [2021-10-28 09:38:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:38:44,005 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 58 [2021-10-28 09:38:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:44,011 INFO L225 Difference]: With dead ends: 1314 [2021-10-28 09:38:44,012 INFO L226 Difference]: Without dead ends: 1272 [2021-10-28 09:38:44,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:38:44,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2021-10-28 09:38:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1232. [2021-10-28 09:38:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 967 states have (on average 1.2988624612202688) internal successors, (1256), 1000 states have internal predecessors, (1256), 155 states have call successors, (155), 82 states have call predecessors, (155), 109 states have return successors, (218), 155 states have call predecessors, (218), 149 states have call successors, (218) [2021-10-28 09:38:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1629 transitions. [2021-10-28 09:38:44,046 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1629 transitions. Word has length 58 [2021-10-28 09:38:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:44,046 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1629 transitions. [2021-10-28 09:38:44,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:38:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1629 transitions. [2021-10-28 09:38:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:38:44,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:44,051 INFO L513 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] [2021-10-28 09:38:44,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:44,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:44,267 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:44,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1230874093, now seen corresponding path program 1 times [2021-10-28 09:38:44,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:44,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331767751] [2021-10-28 09:38:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:44,268 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:44,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:44,270 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:44,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-28 09:38:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:45,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:38:45,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:45,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:45,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:45,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331767751] [2021-10-28 09:38:45,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331767751] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:45,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:45,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-28 09:38:45,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056425965] [2021-10-28 09:38:45,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:38:45,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:45,475 INFO L87 Difference]: Start difference. First operand 1232 states and 1629 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:38:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:45,616 INFO L93 Difference]: Finished difference Result 1308 states and 1757 transitions. [2021-10-28 09:38:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:38:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-10-28 09:38:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:45,620 INFO L225 Difference]: With dead ends: 1308 [2021-10-28 09:38:45,620 INFO L226 Difference]: Without dead ends: 1308 [2021-10-28 09:38:45,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2021-10-28 09:38:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1246. [2021-10-28 09:38:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 977 states have (on average 1.2998976458546572) internal successors, (1270), 1012 states have internal predecessors, (1270), 157 states have call successors, (157), 82 states have call predecessors, (157), 111 states have return successors, (232), 157 states have call predecessors, (232), 151 states have call successors, (232) [2021-10-28 09:38:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1659 transitions. [2021-10-28 09:38:45,653 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1659 transitions. Word has length 60 [2021-10-28 09:38:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:45,653 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 1659 transitions. [2021-10-28 09:38:45,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:38:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1659 transitions. [2021-10-28 09:38:45,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:38:45,660 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:45,660 INFO L513 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] [2021-10-28 09:38:45,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:45,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:45,876 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1490114989, now seen corresponding path program 1 times [2021-10-28 09:38:45,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:45,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779780941] [2021-10-28 09:38:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:45,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:45,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:45,878 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:45,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-28 09:38:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:46,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:38:46,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:46,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:47,239 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:47,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779780941] [2021-10-28 09:38:47,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779780941] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:47,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:47,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-28 09:38:47,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662465890] [2021-10-28 09:38:47,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:38:47,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:47,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:38:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:38:47,242 INFO L87 Difference]: Start difference. First operand 1246 states and 1659 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:47,455 INFO L93 Difference]: Finished difference Result 1312 states and 1768 transitions. [2021-10-28 09:38:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:38:47,456 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) Word has length 60 [2021-10-28 09:38:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:47,460 INFO L225 Difference]: With dead ends: 1312 [2021-10-28 09:38:47,460 INFO L226 Difference]: Without dead ends: 1268 [2021-10-28 09:38:47,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:38:47,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2021-10-28 09:38:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1252. [2021-10-28 09:38:47,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 980 states have (on average 1.2979591836734694) internal successors, (1272), 1019 states have internal predecessors, (1272), 156 states have call successors, (156), 82 states have call predecessors, (156), 115 states have return successors, (261), 156 states have call predecessors, (261), 150 states have call successors, (261) [2021-10-28 09:38:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1689 transitions. [2021-10-28 09:38:47,494 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1689 transitions. Word has length 60 [2021-10-28 09:38:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:47,494 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1689 transitions. [2021-10-28 09:38:47,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:38:47,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1689 transitions. [2021-10-28 09:38:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 09:38:47,500 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:47,500 INFO L513 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] [2021-10-28 09:38:47,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:47,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:47,717 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:47,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1808459213, now seen corresponding path program 1 times [2021-10-28 09:38:47,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:47,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814029043] [2021-10-28 09:38:47,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:47,718 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:47,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:47,719 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:47,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-28 09:38:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:48,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:38:48,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:48,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:49,194 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:49,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814029043] [2021-10-28 09:38:49,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814029043] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:49,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:49,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-10-28 09:38:49,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928839966] [2021-10-28 09:38:49,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:38:49,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:49,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:38:49,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:38:49,196 INFO L87 Difference]: Start difference. First operand 1252 states and 1689 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:38:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:49,753 INFO L93 Difference]: Finished difference Result 1266 states and 1701 transitions. [2021-10-28 09:38:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:38:49,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 65 [2021-10-28 09:38:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:49,757 INFO L225 Difference]: With dead ends: 1266 [2021-10-28 09:38:49,757 INFO L226 Difference]: Without dead ends: 1266 [2021-10-28 09:38:49,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2021-10-28 09:38:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1252. [2021-10-28 09:38:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 980 states have (on average 1.2938775510204081) internal successors, (1268), 1019 states have internal predecessors, (1268), 156 states have call successors, (156), 82 states have call predecessors, (156), 115 states have return successors, (261), 156 states have call predecessors, (261), 150 states have call successors, (261) [2021-10-28 09:38:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1685 transitions. [2021-10-28 09:38:49,803 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1685 transitions. Word has length 65 [2021-10-28 09:38:49,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:49,804 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1685 transitions. [2021-10-28 09:38:49,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:38:49,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1685 transitions. [2021-10-28 09:38:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:38:49,809 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:49,809 INFO L513 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] [2021-10-28 09:38:49,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-10-28 09:38:50,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:50,024 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:50,024 INFO L85 PathProgramCache]: Analyzing trace with hash 94481597, now seen corresponding path program 1 times [2021-10-28 09:38:50,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:50,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851950903] [2021-10-28 09:38:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:50,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:50,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:50,026 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:50,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-28 09:38:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:50,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:38:50,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:51,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:51,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:51,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851950903] [2021-10-28 09:38:51,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851950903] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:51,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:51,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-28 09:38:51,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218868531] [2021-10-28 09:38:51,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:38:51,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:38:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:38:51,751 INFO L87 Difference]: Start difference. First operand 1252 states and 1685 transitions. Second operand has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:52,090 INFO L93 Difference]: Finished difference Result 1274 states and 1711 transitions. [2021-10-28 09:38:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:38:52,091 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 63 [2021-10-28 09:38:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:52,095 INFO L225 Difference]: With dead ends: 1274 [2021-10-28 09:38:52,095 INFO L226 Difference]: Without dead ends: 1253 [2021-10-28 09:38:52,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:38:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2021-10-28 09:38:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1250. [2021-10-28 09:38:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 979 states have (on average 1.2921348314606742) internal successors, (1265), 1018 states have internal predecessors, (1265), 155 states have call successors, (155), 82 states have call predecessors, (155), 115 states have return successors, (260), 155 states have call predecessors, (260), 149 states have call successors, (260) [2021-10-28 09:38:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1680 transitions. [2021-10-28 09:38:52,131 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1680 transitions. Word has length 63 [2021-10-28 09:38:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:52,132 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1680 transitions. [2021-10-28 09:38:52,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:52,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1680 transitions. [2021-10-28 09:38:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:38:52,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:52,139 INFO L513 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] [2021-10-28 09:38:52,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:52,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:52,356 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:52,357 INFO L85 PathProgramCache]: Analyzing trace with hash 854796416, now seen corresponding path program 1 times [2021-10-28 09:38:52,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:52,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555000430] [2021-10-28 09:38:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:52,357 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:52,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:52,358 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:52,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-28 09:38:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:53,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:38:53,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:53,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:54,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:54,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555000430] [2021-10-28 09:38:54,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555000430] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:54,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:54,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-28 09:38:54,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441014052] [2021-10-28 09:38:54,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:38:54,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:54,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:38:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:38:54,059 INFO L87 Difference]: Start difference. First operand 1250 states and 1680 transitions. Second operand has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:54,384 INFO L93 Difference]: Finished difference Result 1274 states and 1709 transitions. [2021-10-28 09:38:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:38:54,385 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 62 [2021-10-28 09:38:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:54,388 INFO L225 Difference]: With dead ends: 1274 [2021-10-28 09:38:54,388 INFO L226 Difference]: Without dead ends: 1253 [2021-10-28 09:38:54,388 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:38:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2021-10-28 09:38:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1248. [2021-10-28 09:38:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 978 states have (on average 1.2903885480572597) internal successors, (1262), 1017 states have internal predecessors, (1262), 154 states have call successors, (154), 82 states have call predecessors, (154), 115 states have return successors, (259), 154 states have call predecessors, (259), 148 states have call successors, (259) [2021-10-28 09:38:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1675 transitions. [2021-10-28 09:38:54,418 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1675 transitions. Word has length 62 [2021-10-28 09:38:54,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:54,418 INFO L470 AbstractCegarLoop]: Abstraction has 1248 states and 1675 transitions. [2021-10-28 09:38:54,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-28 09:38:54,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1675 transitions. [2021-10-28 09:38:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:38:54,422 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:54,422 INFO L513 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] [2021-10-28 09:38:54,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-10-28 09:38:54,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:54,636 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -136722259, now seen corresponding path program 1 times [2021-10-28 09:38:54,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:54,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329425605] [2021-10-28 09:38:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:54,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:54,637 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:54,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-28 09:38:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:55,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:38:55,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:55,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:56,504 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:56,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329425605] [2021-10-28 09:38:56,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329425605] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:56,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:56,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-28 09:38:56,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039533132] [2021-10-28 09:38:56,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:38:56,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:38:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:38:56,506 INFO L87 Difference]: Start difference. First operand 1248 states and 1675 transitions. Second operand has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:38:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:57,133 INFO L93 Difference]: Finished difference Result 1324 states and 1761 transitions. [2021-10-28 09:38:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:38:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 62 [2021-10-28 09:38:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:57,138 INFO L225 Difference]: With dead ends: 1324 [2021-10-28 09:38:57,138 INFO L226 Difference]: Without dead ends: 1272 [2021-10-28 09:38:57,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:38:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2021-10-28 09:38:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1238. [2021-10-28 09:38:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 972 states have (on average 1.2901234567901234) internal successors, (1254), 1011 states have internal predecessors, (1254), 152 states have call successors, (152), 82 states have call predecessors, (152), 113 states have return successors, (255), 150 states have call predecessors, (255), 146 states have call successors, (255) [2021-10-28 09:38:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1661 transitions. [2021-10-28 09:38:57,171 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1661 transitions. Word has length 62 [2021-10-28 09:38:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:57,171 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1661 transitions. [2021-10-28 09:38:57,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:38:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1661 transitions. [2021-10-28 09:38:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:38:57,176 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:57,176 INFO L513 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] [2021-10-28 09:38:57,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:57,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:57,388 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2028961323, now seen corresponding path program 1 times [2021-10-28 09:38:57,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:57,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784803539] [2021-10-28 09:38:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:57,389 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:57,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:57,390 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:57,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-28 09:38:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:58,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:58,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:58,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:58,637 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:58,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784803539] [2021-10-28 09:38:58,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784803539] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:58,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:58,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:38:58,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961556568] [2021-10-28 09:38:58,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:58,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:58,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:58,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:58,638 INFO L87 Difference]: Start difference. First operand 1238 states and 1661 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:38:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:58,646 INFO L93 Difference]: Finished difference Result 1144 states and 1483 transitions. [2021-10-28 09:38:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-10-28 09:38:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:58,649 INFO L225 Difference]: With dead ends: 1144 [2021-10-28 09:38:58,649 INFO L226 Difference]: Without dead ends: 1136 [2021-10-28 09:38:58,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2021-10-28 09:38:58,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1011. [2021-10-28 09:38:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 797 states have (on average 1.2760351317440402) internal successors, (1017), 822 states have internal predecessors, (1017), 117 states have call successors, (117), 71 states have call predecessors, (117), 96 states have return successors, (161), 123 states have call predecessors, (161), 111 states have call successors, (161) [2021-10-28 09:38:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1295 transitions. [2021-10-28 09:38:58,685 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1295 transitions. Word has length 63 [2021-10-28 09:38:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:58,685 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1295 transitions. [2021-10-28 09:38:58,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 09:38:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1295 transitions. [2021-10-28 09:38:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:38:58,689 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:58,689 INFO L513 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, 1, 1] [2021-10-28 09:38:58,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:58,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:58,908 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:58,908 INFO L85 PathProgramCache]: Analyzing trace with hash 251959398, now seen corresponding path program 1 times [2021-10-28 09:38:58,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:58,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384563135] [2021-10-28 09:38:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:58,909 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:58,910 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:58,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-28 09:38:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:00,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:39:00,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:00,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:01,074 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:01,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384563135] [2021-10-28 09:39:01,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384563135] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:01,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:01,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-28 09:39:01,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519970557] [2021-10-28 09:39:01,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:39:01,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:39:01,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:39:01,076 INFO L87 Difference]: Start difference. First operand 1011 states and 1295 transitions. Second operand has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:39:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:01,639 INFO L93 Difference]: Finished difference Result 1087 states and 1379 transitions. [2021-10-28 09:39:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:39:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 69 [2021-10-28 09:39:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:01,643 INFO L225 Difference]: With dead ends: 1087 [2021-10-28 09:39:01,644 INFO L226 Difference]: Without dead ends: 1023 [2021-10-28 09:39:01,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:39:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2021-10-28 09:39:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 985. [2021-10-28 09:39:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 777 states have (on average 1.274131274131274) internal successors, (990), 802 states have internal predecessors, (990), 113 states have call successors, (113), 71 states have call predecessors, (113), 94 states have return successors, (155), 117 states have call predecessors, (155), 107 states have call successors, (155) [2021-10-28 09:39:01,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1258 transitions. [2021-10-28 09:39:01,668 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1258 transitions. Word has length 69 [2021-10-28 09:39:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:01,669 INFO L470 AbstractCegarLoop]: Abstraction has 985 states and 1258 transitions. [2021-10-28 09:39:01,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:39:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1258 transitions. [2021-10-28 09:39:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:39:01,673 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:01,673 INFO L513 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] [2021-10-28 09:39:01,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:01,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:01,896 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash -317898980, now seen corresponding path program 1 times [2021-10-28 09:39:01,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:01,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291815420] [2021-10-28 09:39:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:01,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:01,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:01,900 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:01,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-28 09:39:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:39:03,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:03,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:04,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:04,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291815420] [2021-10-28 09:39:04,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291815420] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:04,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:04,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-28 09:39:04,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202179695] [2021-10-28 09:39:04,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:39:04,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:04,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:39:04,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:39:04,149 INFO L87 Difference]: Start difference. First operand 985 states and 1258 transitions. Second operand has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:39:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:04,745 INFO L93 Difference]: Finished difference Result 1061 states and 1340 transitions. [2021-10-28 09:39:04,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:39:04,745 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 63 [2021-10-28 09:39:04,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:04,748 INFO L225 Difference]: With dead ends: 1061 [2021-10-28 09:39:04,748 INFO L226 Difference]: Without dead ends: 1009 [2021-10-28 09:39:04,748 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:39:04,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2021-10-28 09:39:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 975. [2021-10-28 09:39:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 771 states have (on average 1.2736705577172502) internal successors, (982), 796 states have internal predecessors, (982), 111 states have call successors, (111), 71 states have call predecessors, (111), 92 states have return successors, (151), 113 states have call predecessors, (151), 105 states have call successors, (151) [2021-10-28 09:39:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1244 transitions. [2021-10-28 09:39:04,769 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1244 transitions. Word has length 63 [2021-10-28 09:39:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:04,769 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1244 transitions. [2021-10-28 09:39:04,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:39:04,770 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1244 transitions. [2021-10-28 09:39:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-28 09:39:04,774 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:04,774 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:04,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-10-28 09:39:04,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:04,995 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:04,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:04,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1765536139, now seen corresponding path program 1 times [2021-10-28 09:39:04,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:04,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387429898] [2021-10-28 09:39:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:04,996 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:04,997 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:05,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-28 09:39:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:06,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:39:06,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:06,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:06,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:06,725 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:06,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387429898] [2021-10-28 09:39:06,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387429898] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:06,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:06,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-28 09:39:06,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400992384] [2021-10-28 09:39:06,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:39:06,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:06,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:39:06,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:39:06,727 INFO L87 Difference]: Start difference. First operand 975 states and 1244 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-10-28 09:39:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:07,239 INFO L93 Difference]: Finished difference Result 953 states and 1200 transitions. [2021-10-28 09:39:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:39:07,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 79 [2021-10-28 09:39:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:07,243 INFO L225 Difference]: With dead ends: 953 [2021-10-28 09:39:07,243 INFO L226 Difference]: Without dead ends: 953 [2021-10-28 09:39:07,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2021-10-28 09:39:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2021-10-28 09:39:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 753 states have (on average 1.2616201859229748) internal successors, (950), 776 states have internal predecessors, (950), 109 states have call successors, (109), 71 states have call predecessors, (109), 90 states have return successors, (141), 111 states have call predecessors, (141), 103 states have call successors, (141) [2021-10-28 09:39:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1200 transitions. [2021-10-28 09:39:07,262 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1200 transitions. Word has length 79 [2021-10-28 09:39:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:07,262 INFO L470 AbstractCegarLoop]: Abstraction has 953 states and 1200 transitions. [2021-10-28 09:39:07,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-10-28 09:39:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1200 transitions. [2021-10-28 09:39:07,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-28 09:39:07,265 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:07,266 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:07,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:07,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:07,480 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash -988186886, now seen corresponding path program 1 times [2021-10-28 09:39:07,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:07,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57767881] [2021-10-28 09:39:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:07,481 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:07,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:07,482 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:07,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-28 09:39:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:08,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:08,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:08,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:09,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:09,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57767881] [2021-10-28 09:39:09,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57767881] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:09,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:09,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:39:09,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324940660] [2021-10-28 09:39:09,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:39:09,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:09,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:39:09,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:09,140 INFO L87 Difference]: Start difference. First operand 953 states and 1200 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:09,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:09,158 INFO L93 Difference]: Finished difference Result 1034 states and 1298 transitions. [2021-10-28 09:39:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:39:09,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2021-10-28 09:39:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:09,163 INFO L225 Difference]: With dead ends: 1034 [2021-10-28 09:39:09,164 INFO L226 Difference]: Without dead ends: 1034 [2021-10-28 09:39:09,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:09,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-10-28 09:39:09,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1010. [2021-10-28 09:39:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 799 states have (on average 1.2665832290362953) internal successors, (1012), 821 states have internal predecessors, (1012), 113 states have call successors, (113), 76 states have call predecessors, (113), 97 states have return successors, (148), 118 states have call predecessors, (148), 108 states have call successors, (148) [2021-10-28 09:39:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1273 transitions. [2021-10-28 09:39:09,184 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1273 transitions. Word has length 80 [2021-10-28 09:39:09,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:09,185 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1273 transitions. [2021-10-28 09:39:09,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:09,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1273 transitions. [2021-10-28 09:39:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:39:09,188 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:09,189 INFO L513 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] [2021-10-28 09:39:09,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:09,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:09,409 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1151296709, now seen corresponding path program 1 times [2021-10-28 09:39:09,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:09,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726055291] [2021-10-28 09:39:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:09,410 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:09,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:09,411 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:09,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-28 09:39:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:11,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:39:11,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:11,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:11,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:11,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726055291] [2021-10-28 09:39:11,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726055291] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:11,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:11,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-28 09:39:11,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470179226] [2021-10-28 09:39:11,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:39:11,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:39:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:39:11,972 INFO L87 Difference]: Start difference. First operand 1010 states and 1273 transitions. Second operand has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-28 09:39:12,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:12,289 INFO L93 Difference]: Finished difference Result 1034 states and 1302 transitions. [2021-10-28 09:39:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:39:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 66 [2021-10-28 09:39:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:12,293 INFO L225 Difference]: With dead ends: 1034 [2021-10-28 09:39:12,293 INFO L226 Difference]: Without dead ends: 1013 [2021-10-28 09:39:12,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:39:12,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-10-28 09:39:12,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1008. [2021-10-28 09:39:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 798 states have (on average 1.2656641604010026) internal successors, (1010), 820 states have internal predecessors, (1010), 112 states have call successors, (112), 76 states have call predecessors, (112), 97 states have return successors, (147), 117 states have call predecessors, (147), 107 states have call successors, (147) [2021-10-28 09:39:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1269 transitions. [2021-10-28 09:39:12,318 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1269 transitions. Word has length 66 [2021-10-28 09:39:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:12,319 INFO L470 AbstractCegarLoop]: Abstraction has 1008 states and 1269 transitions. [2021-10-28 09:39:12,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-28 09:39:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1269 transitions. [2021-10-28 09:39:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 09:39:12,322 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:12,322 INFO L513 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] [2021-10-28 09:39:12,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-28 09:39:12,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:12,542 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:12,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:12,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1342190428, now seen corresponding path program 1 times [2021-10-28 09:39:12,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:12,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139849545] [2021-10-28 09:39:12,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:12,543 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:12,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:12,544 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:12,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-28 09:39:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:13,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:13,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:13,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:14,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:14,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139849545] [2021-10-28 09:39:14,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139849545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:14,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:14,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:14,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990920363] [2021-10-28 09:39:14,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:14,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:14,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:14,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:14,116 INFO L87 Difference]: Start difference. First operand 1008 states and 1269 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:14,152 INFO L93 Difference]: Finished difference Result 1002 states and 1259 transitions. [2021-10-28 09:39:14,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:39:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-10-28 09:39:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:14,155 INFO L225 Difference]: With dead ends: 1002 [2021-10-28 09:39:14,156 INFO L226 Difference]: Without dead ends: 1002 [2021-10-28 09:39:14,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2021-10-28 09:39:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2021-10-28 09:39:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 793 states have (on average 1.2635561160151325) internal successors, (1002), 815 states have internal predecessors, (1002), 111 states have call successors, (111), 76 states have call predecessors, (111), 97 states have return successors, (146), 116 states have call predecessors, (146), 106 states have call successors, (146) [2021-10-28 09:39:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1259 transitions. [2021-10-28 09:39:14,176 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1259 transitions. Word has length 65 [2021-10-28 09:39:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:14,176 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1259 transitions. [2021-10-28 09:39:14,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1259 transitions. [2021-10-28 09:39:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 09:39:14,180 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:14,180 INFO L513 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, 1, 1, 1] [2021-10-28 09:39:14,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:14,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:14,396 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:14,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:14,396 INFO L85 PathProgramCache]: Analyzing trace with hash 408725214, now seen corresponding path program 1 times [2021-10-28 09:39:14,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:14,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256489452] [2021-10-28 09:39:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:14,397 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:14,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:14,397 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:14,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-28 09:39:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:15,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:39:15,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:15,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:16,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:16,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256489452] [2021-10-28 09:39:16,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256489452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:16,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:16,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-28 09:39:16,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270964620] [2021-10-28 09:39:16,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:39:16,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:16,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:39:16,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:39:16,063 INFO L87 Difference]: Start difference. First operand 1002 states and 1259 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-10-28 09:39:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:16,190 INFO L93 Difference]: Finished difference Result 1008 states and 1266 transitions. [2021-10-28 09:39:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:39:16,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 70 [2021-10-28 09:39:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:16,194 INFO L225 Difference]: With dead ends: 1008 [2021-10-28 09:39:16,194 INFO L226 Difference]: Without dead ends: 1008 [2021-10-28 09:39:16,195 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:39:16,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-10-28 09:39:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1001. [2021-10-28 09:39:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 793 states have (on average 1.2635561160151325) internal successors, (1002), 814 states have internal predecessors, (1002), 110 states have call successors, (110), 76 states have call predecessors, (110), 97 states have return successors, (144), 116 states have call predecessors, (144), 105 states have call successors, (144) [2021-10-28 09:39:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1256 transitions. [2021-10-28 09:39:16,215 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1256 transitions. Word has length 70 [2021-10-28 09:39:16,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:16,215 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1256 transitions. [2021-10-28 09:39:16,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-10-28 09:39:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1256 transitions. [2021-10-28 09:39:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 09:39:16,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:16,219 INFO L513 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, 1, 1, 1] [2021-10-28 09:39:16,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:16,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:16,439 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 549625310, now seen corresponding path program 1 times [2021-10-28 09:39:16,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:16,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803025749] [2021-10-28 09:39:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:16,441 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:16,442 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:16,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-28 09:39:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:17,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:39:17,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:17,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:18,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:18,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803025749] [2021-10-28 09:39:18,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803025749] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:18,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:18,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-28 09:39:18,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100912424] [2021-10-28 09:39:18,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:39:18,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:39:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:39:18,552 INFO L87 Difference]: Start difference. First operand 1001 states and 1256 transitions. Second operand has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) [2021-10-28 09:39:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:19,021 INFO L93 Difference]: Finished difference Result 1027 states and 1288 transitions. [2021-10-28 09:39:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:39:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) Word has length 70 [2021-10-28 09:39:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:19,025 INFO L225 Difference]: With dead ends: 1027 [2021-10-28 09:39:19,026 INFO L226 Difference]: Without dead ends: 1002 [2021-10-28 09:39:19,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-28 09:39:19,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2021-10-28 09:39:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 997. [2021-10-28 09:39:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 790 states have (on average 1.2632911392405064) internal successors, (998), 811 states have internal predecessors, (998), 109 states have call successors, (109), 76 states have call predecessors, (109), 97 states have return successors, (143), 115 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-28 09:39:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1250 transitions. [2021-10-28 09:39:19,055 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1250 transitions. Word has length 70 [2021-10-28 09:39:19,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:19,055 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1250 transitions. [2021-10-28 09:39:19,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) [2021-10-28 09:39:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1250 transitions. [2021-10-28 09:39:19,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:39:19,059 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:19,059 INFO L513 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] [2021-10-28 09:39:19,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:19,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:19,276 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:19,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:19,276 INFO L85 PathProgramCache]: Analyzing trace with hash -230207487, now seen corresponding path program 1 times [2021-10-28 09:39:19,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:19,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780687996] [2021-10-28 09:39:19,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:19,277 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:19,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:19,278 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:19,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-28 09:39:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:20,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:39:20,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:21,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:21,731 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:21,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780687996] [2021-10-28 09:39:21,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780687996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:21,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:21,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-28 09:39:21,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944300501] [2021-10-28 09:39:21,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:39:21,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:39:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:39:21,734 INFO L87 Difference]: Start difference. First operand 997 states and 1250 transitions. Second operand has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-28 09:39:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:22,037 INFO L93 Difference]: Finished difference Result 1019 states and 1276 transitions. [2021-10-28 09:39:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:39:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 67 [2021-10-28 09:39:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:22,040 INFO L225 Difference]: With dead ends: 1019 [2021-10-28 09:39:22,040 INFO L226 Difference]: Without dead ends: 998 [2021-10-28 09:39:22,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:39:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-10-28 09:39:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 995. [2021-10-28 09:39:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 789 states have (on average 1.2623574144486691) internal successors, (996), 810 states have internal predecessors, (996), 108 states have call successors, (108), 76 states have call predecessors, (108), 97 states have return successors, (142), 114 states have call predecessors, (142), 103 states have call successors, (142) [2021-10-28 09:39:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1246 transitions. [2021-10-28 09:39:22,060 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1246 transitions. Word has length 67 [2021-10-28 09:39:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:22,060 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1246 transitions. [2021-10-28 09:39:22,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-28 09:39:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1246 transitions. [2021-10-28 09:39:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:39:22,064 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:22,065 INFO L513 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] [2021-10-28 09:39:22,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:22,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:22,287 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash 618839343, now seen corresponding path program 1 times [2021-10-28 09:39:22,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:22,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158605420] [2021-10-28 09:39:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:22,289 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:22,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:22,291 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:22,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-28 09:39:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:24,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:24,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:24,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:24,645 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:24,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158605420] [2021-10-28 09:39:24,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158605420] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:24,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:24,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:24,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389940272] [2021-10-28 09:39:24,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:24,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:24,647 INFO L87 Difference]: Start difference. First operand 995 states and 1246 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:24,694 INFO L93 Difference]: Finished difference Result 995 states and 1245 transitions. [2021-10-28 09:39:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:39:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-10-28 09:39:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:24,697 INFO L225 Difference]: With dead ends: 995 [2021-10-28 09:39:24,697 INFO L226 Difference]: Without dead ends: 990 [2021-10-28 09:39:24,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-10-28 09:39:24,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2021-10-28 09:39:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 785 states have (on average 1.2611464968152866) internal successors, (990), 806 states have internal predecessors, (990), 107 states have call successors, (107), 76 states have call predecessors, (107), 97 states have return successors, (141), 113 states have call predecessors, (141), 102 states have call successors, (141) [2021-10-28 09:39:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1238 transitions. [2021-10-28 09:39:24,722 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1238 transitions. Word has length 67 [2021-10-28 09:39:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:24,723 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1238 transitions. [2021-10-28 09:39:24,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1238 transitions. [2021-10-28 09:39:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 09:39:24,726 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:24,727 INFO L513 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, 1] [2021-10-28 09:39:24,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-10-28 09:39:24,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:24,936 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:24,936 INFO L85 PathProgramCache]: Analyzing trace with hash -601739544, now seen corresponding path program 1 times [2021-10-28 09:39:24,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:24,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145590544] [2021-10-28 09:39:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:24,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:24,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:24,938 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:24,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-28 09:39:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:26,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:26,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:26,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:27,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:27,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145590544] [2021-10-28 09:39:27,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145590544] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:27,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:27,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:27,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615454814] [2021-10-28 09:39:27,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:27,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:27,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:27,285 INFO L87 Difference]: Start difference. First operand 990 states and 1238 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:39:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:27,754 INFO L93 Difference]: Finished difference Result 998 states and 1242 transitions. [2021-10-28 09:39:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:39:27,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 68 [2021-10-28 09:39:27,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:27,757 INFO L225 Difference]: With dead ends: 998 [2021-10-28 09:39:27,757 INFO L226 Difference]: Without dead ends: 998 [2021-10-28 09:39:27,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:39:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-10-28 09:39:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 990. [2021-10-28 09:39:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 785 states have (on average 1.2585987261146496) internal successors, (988), 806 states have internal predecessors, (988), 107 states have call successors, (107), 76 states have call predecessors, (107), 97 states have return successors, (141), 113 states have call predecessors, (141), 102 states have call successors, (141) [2021-10-28 09:39:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1236 transitions. [2021-10-28 09:39:27,785 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1236 transitions. Word has length 68 [2021-10-28 09:39:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:27,785 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1236 transitions. [2021-10-28 09:39:27,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:39:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1236 transitions. [2021-10-28 09:39:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:39:27,788 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:27,788 INFO L513 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, 1, 1, 1, 1, 1] [2021-10-28 09:39:27,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:27,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:27,989 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:27,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:27,989 INFO L85 PathProgramCache]: Analyzing trace with hash -275884697, now seen corresponding path program 1 times [2021-10-28 09:39:27,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:27,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357342537] [2021-10-28 09:39:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:27,990 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:27,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:27,991 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:27,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-28 09:39:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:29,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:29,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:29,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:29,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357342537] [2021-10-28 09:39:29,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357342537] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:29,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:29,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 09:39:29,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184050565] [2021-10-28 09:39:29,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:39:29,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:39:29,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:39:29,978 INFO L87 Difference]: Start difference. First operand 990 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:39:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:29,989 INFO L93 Difference]: Finished difference Result 990 states and 1232 transitions. [2021-10-28 09:39:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:39:29,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 72 [2021-10-28 09:39:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:29,994 INFO L225 Difference]: With dead ends: 990 [2021-10-28 09:39:29,995 INFO L226 Difference]: Without dead ends: 990 [2021-10-28 09:39:29,995 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:39:29,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-10-28 09:39:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2021-10-28 09:39:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 785 states have (on average 1.2535031847133757) internal successors, (984), 806 states have internal predecessors, (984), 107 states have call successors, (107), 76 states have call predecessors, (107), 97 states have return successors, (141), 113 states have call predecessors, (141), 102 states have call successors, (141) [2021-10-28 09:39:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1232 transitions. [2021-10-28 09:39:30,018 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1232 transitions. Word has length 72 [2021-10-28 09:39:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:30,019 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1232 transitions. [2021-10-28 09:39:30,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-28 09:39:30,019 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1232 transitions. [2021-10-28 09:39:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:39:30,022 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:30,022 INFO L513 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, 1, 1] [2021-10-28 09:39:30,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:30,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:30,236 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash -836181127, now seen corresponding path program 1 times [2021-10-28 09:39:30,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:30,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611194987] [2021-10-28 09:39:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:30,237 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:30,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:30,239 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:30,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-28 09:39:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:32,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:39:32,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:32,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:32,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:32,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611194987] [2021-10-28 09:39:32,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611194987] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:32,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:32,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 09:39:32,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469138843] [2021-10-28 09:39:32,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:39:32,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:32,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:39:32,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:39:32,701 INFO L87 Difference]: Start difference. First operand 990 states and 1232 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:32,798 INFO L93 Difference]: Finished difference Result 995 states and 1238 transitions. [2021-10-28 09:39:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:39:32,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2021-10-28 09:39:32,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:32,801 INFO L225 Difference]: With dead ends: 995 [2021-10-28 09:39:32,801 INFO L226 Difference]: Without dead ends: 995 [2021-10-28 09:39:32,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:39:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-10-28 09:39:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 988. [2021-10-28 09:39:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 783 states have (on average 1.2528735632183907) internal successors, (981), 804 states have internal predecessors, (981), 107 states have call successors, (107), 76 states have call predecessors, (107), 97 states have return successors, (141), 113 states have call predecessors, (141), 102 states have call successors, (141) [2021-10-28 09:39:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1229 transitions. [2021-10-28 09:39:32,823 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1229 transitions. Word has length 69 [2021-10-28 09:39:32,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:32,824 INFO L470 AbstractCegarLoop]: Abstraction has 988 states and 1229 transitions. [2021-10-28 09:39:32,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1229 transitions. [2021-10-28 09:39:32,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:39:32,827 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:32,827 INFO L513 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, 1, 1] [2021-10-28 09:39:32,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:33,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:33,032 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1345654217, now seen corresponding path program 1 times [2021-10-28 09:39:33,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:33,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116039074] [2021-10-28 09:39:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:33,033 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:33,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:33,035 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:33,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-10-28 09:39:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:34,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:39:34,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:35,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:35,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:35,430 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:35,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116039074] [2021-10-28 09:39:35,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116039074] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:35,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:35,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-28 09:39:35,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338618298] [2021-10-28 09:39:35,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:39:35,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:35,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:39:35,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:39:35,432 INFO L87 Difference]: Start difference. First operand 988 states and 1229 transitions. Second operand has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:39:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:35,594 INFO L93 Difference]: Finished difference Result 1012 states and 1257 transitions. [2021-10-28 09:39:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:39:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2021-10-28 09:39:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:35,597 INFO L225 Difference]: With dead ends: 1012 [2021-10-28 09:39:35,597 INFO L226 Difference]: Without dead ends: 985 [2021-10-28 09:39:35,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:39:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2021-10-28 09:39:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2021-10-28 09:39:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 781 states have (on average 1.2509603072983355) internal successors, (977), 802 states have internal predecessors, (977), 106 states have call successors, (106), 76 states have call predecessors, (106), 97 states have return successors, (140), 112 states have call predecessors, (140), 101 states have call successors, (140) [2021-10-28 09:39:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1223 transitions. [2021-10-28 09:39:35,617 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1223 transitions. Word has length 69 [2021-10-28 09:39:35,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:35,617 INFO L470 AbstractCegarLoop]: Abstraction has 985 states and 1223 transitions. [2021-10-28 09:39:35,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-28 09:39:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1223 transitions. [2021-10-28 09:39:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:39:35,621 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:35,621 INFO L513 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, 1, 1] [2021-10-28 09:39:35,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:35,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:35,836 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1408920812, now seen corresponding path program 1 times [2021-10-28 09:39:35,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:35,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634830061] [2021-10-28 09:39:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:35,837 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:35,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:35,839 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:35,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-10-28 09:39:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:37,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:37,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:37,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:38,047 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:38,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634830061] [2021-10-28 09:39:38,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634830061] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:38,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:38,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:38,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023878873] [2021-10-28 09:39:38,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:38,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:38,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:38,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:38,049 INFO L87 Difference]: Start difference. First operand 985 states and 1223 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:38,105 INFO L93 Difference]: Finished difference Result 985 states and 1222 transitions. [2021-10-28 09:39:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:39:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2021-10-28 09:39:38,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:38,109 INFO L225 Difference]: With dead ends: 985 [2021-10-28 09:39:38,109 INFO L226 Difference]: Without dead ends: 980 [2021-10-28 09:39:38,110 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-10-28 09:39:38,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2021-10-28 09:39:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 777 states have (on average 1.2496782496782497) internal successors, (971), 798 states have internal predecessors, (971), 105 states have call successors, (105), 76 states have call predecessors, (105), 97 states have return successors, (139), 111 states have call predecessors, (139), 100 states have call successors, (139) [2021-10-28 09:39:38,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1215 transitions. [2021-10-28 09:39:38,133 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1215 transitions. Word has length 69 [2021-10-28 09:39:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:38,133 INFO L470 AbstractCegarLoop]: Abstraction has 980 states and 1215 transitions. [2021-10-28 09:39:38,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:39:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1215 transitions. [2021-10-28 09:39:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 09:39:38,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:38,137 INFO L513 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, 1, 1] [2021-10-28 09:39:38,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:38,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:38,356 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2114383891, now seen corresponding path program 1 times [2021-10-28 09:39:38,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:38,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231526751] [2021-10-28 09:39:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:38,357 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:38,359 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:38,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-10-28 09:39:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:40,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:39:40,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:40,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:40,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:40,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231526751] [2021-10-28 09:39:40,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231526751] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:40,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:40,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 21 [2021-10-28 09:39:40,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444542916] [2021-10-28 09:39:40,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:39:40,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:40,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:39:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:39:40,968 INFO L87 Difference]: Start difference. First operand 980 states and 1215 transitions. Second operand has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) [2021-10-28 09:39:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:41,373 INFO L93 Difference]: Finished difference Result 1064 states and 1303 transitions. [2021-10-28 09:39:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:39:41,373 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2021-10-28 09:39:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:41,375 INFO L225 Difference]: With dead ends: 1064 [2021-10-28 09:39:41,375 INFO L226 Difference]: Without dead ends: 925 [2021-10-28 09:39:41,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:39:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-10-28 09:39:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 913. [2021-10-28 09:39:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.2465373961218837) internal successors, (900), 740 states have internal predecessors, (900), 103 states have call successors, (103), 74 states have call predecessors, (103), 87 states have return successors, (129), 102 states have call predecessors, (129), 98 states have call successors, (129) [2021-10-28 09:39:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1132 transitions. [2021-10-28 09:39:41,399 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1132 transitions. Word has length 69 [2021-10-28 09:39:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:41,399 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1132 transitions. [2021-10-28 09:39:41,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) [2021-10-28 09:39:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1132 transitions. [2021-10-28 09:39:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:39:41,402 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:41,403 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:41,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:41,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:41,626 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2137250320, now seen corresponding path program 1 times [2021-10-28 09:39:41,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:41,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113293048] [2021-10-28 09:39:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:41,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:41,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:41,628 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:41,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-10-28 09:39:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:43,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:39:43,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:43,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:44,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:44,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113293048] [2021-10-28 09:39:44,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113293048] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:44,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:44,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-28 09:39:44,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471451663] [2021-10-28 09:39:44,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:39:44,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:44,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:39:44,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:39:44,035 INFO L87 Difference]: Start difference. First operand 913 states and 1132 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 09:39:44,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:44,162 INFO L93 Difference]: Finished difference Result 918 states and 1138 transitions. [2021-10-28 09:39:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:39:44,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 74 [2021-10-28 09:39:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:44,166 INFO L225 Difference]: With dead ends: 918 [2021-10-28 09:39:44,167 INFO L226 Difference]: Without dead ends: 918 [2021-10-28 09:39:44,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:39:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2021-10-28 09:39:44,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 913. [2021-10-28 09:39:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.2465373961218837) internal successors, (900), 740 states have internal predecessors, (900), 103 states have call successors, (103), 74 states have call predecessors, (103), 87 states have return successors, (128), 102 states have call predecessors, (128), 98 states have call successors, (128) [2021-10-28 09:39:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1131 transitions. [2021-10-28 09:39:44,185 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1131 transitions. Word has length 74 [2021-10-28 09:39:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:44,186 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1131 transitions. [2021-10-28 09:39:44,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 09:39:44,186 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1131 transitions. [2021-10-28 09:39:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:39:44,190 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:44,190 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:44,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:44,404 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:44,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1853047052, now seen corresponding path program 1 times [2021-10-28 09:39:44,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:44,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953640937] [2021-10-28 09:39:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:44,405 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:44,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:44,406 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-10-28 09:39:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:46,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:39:46,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:46,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:47,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:47,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953640937] [2021-10-28 09:39:47,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953640937] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:47,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:47,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-28 09:39:47,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137960541] [2021-10-28 09:39:47,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:39:47,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:47,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:39:47,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:39:47,223 INFO L87 Difference]: Start difference. First operand 913 states and 1131 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-28 09:39:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:47,615 INFO L93 Difference]: Finished difference Result 935 states and 1157 transitions. [2021-10-28 09:39:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:39:47,616 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) Word has length 74 [2021-10-28 09:39:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:47,618 INFO L225 Difference]: With dead ends: 935 [2021-10-28 09:39:47,618 INFO L226 Difference]: Without dead ends: 905 [2021-10-28 09:39:47,618 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-28 09:39:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2021-10-28 09:39:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 902. [2021-10-28 09:39:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 715 states have (on average 1.2461538461538462) internal successors, (891), 732 states have internal predecessors, (891), 99 states have call successors, (99), 74 states have call predecessors, (99), 87 states have return successors, (123), 99 states have call predecessors, (123), 94 states have call successors, (123) [2021-10-28 09:39:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1113 transitions. [2021-10-28 09:39:47,639 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1113 transitions. Word has length 74 [2021-10-28 09:39:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:47,640 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1113 transitions. [2021-10-28 09:39:47,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-28 09:39:47,640 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1113 transitions. [2021-10-28 09:39:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:39:47,643 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:47,643 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:39:47,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:47,867 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1733287926, now seen corresponding path program 1 times [2021-10-28 09:39:47,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:47,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230599799] [2021-10-28 09:39:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:47,868 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:47,869 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-10-28 09:39:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:49,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:49,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:49,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:50,202 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:50,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230599799] [2021-10-28 09:39:50,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230599799] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:50,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:50,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:50,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770309459] [2021-10-28 09:39:50,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:50,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:50,204 INFO L87 Difference]: Start difference. First operand 902 states and 1113 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:39:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:50,261 INFO L93 Difference]: Finished difference Result 905 states and 1116 transitions. [2021-10-28 09:39:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:39:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-10-28 09:39:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:50,264 INFO L225 Difference]: With dead ends: 905 [2021-10-28 09:39:50,264 INFO L226 Difference]: Without dead ends: 898 [2021-10-28 09:39:50,265 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-10-28 09:39:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 895. [2021-10-28 09:39:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 709 states have (on average 1.2468265162200283) internal successors, (884), 726 states have internal predecessors, (884), 98 states have call successors, (98), 74 states have call predecessors, (98), 87 states have return successors, (121), 98 states have call predecessors, (121), 93 states have call successors, (121) [2021-10-28 09:39:50,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1103 transitions. [2021-10-28 09:39:50,286 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1103 transitions. Word has length 71 [2021-10-28 09:39:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:50,286 INFO L470 AbstractCegarLoop]: Abstraction has 895 states and 1103 transitions. [2021-10-28 09:39:50,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:39:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1103 transitions. [2021-10-28 09:39:50,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:39:50,292 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:50,292 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:39:50,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:50,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:50,516 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash -554123113, now seen corresponding path program 1 times [2021-10-28 09:39:50,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:50,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276892251] [2021-10-28 09:39:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:50,517 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:50,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:50,518 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:50,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-10-28 09:39:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:52,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:52,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:52,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:52,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:52,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276892251] [2021-10-28 09:39:52,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276892251] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:52,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:52,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:39:52,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263275923] [2021-10-28 09:39:52,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:39:52,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:39:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:52,819 INFO L87 Difference]: Start difference. First operand 895 states and 1103 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:39:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:52,848 INFO L93 Difference]: Finished difference Result 898 states and 1106 transitions. [2021-10-28 09:39:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:39:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-10-28 09:39:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:52,850 INFO L225 Difference]: With dead ends: 898 [2021-10-28 09:39:52,850 INFO L226 Difference]: Without dead ends: 892 [2021-10-28 09:39:52,851 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:39:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-10-28 09:39:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 889. [2021-10-28 09:39:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 704 states have (on average 1.2471590909090908) internal successors, (878), 721 states have internal predecessors, (878), 97 states have call successors, (97), 74 states have call predecessors, (97), 87 states have return successors, (120), 97 states have call predecessors, (120), 92 states have call successors, (120) [2021-10-28 09:39:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1095 transitions. [2021-10-28 09:39:52,881 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1095 transitions. Word has length 71 [2021-10-28 09:39:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:52,882 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1095 transitions. [2021-10-28 09:39:52,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:39:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1095 transitions. [2021-10-28 09:39:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 09:39:52,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:52,884 INFO L513 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, 1, 1, 1, 1] [2021-10-28 09:39:52,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:53,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:53,108 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash 893345963, now seen corresponding path program 1 times [2021-10-28 09:39:53,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:53,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027566667] [2021-10-28 09:39:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:53,109 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:53,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:53,110 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:53,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-10-28 09:39:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:55,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:55,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:55,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:55,362 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:55,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027566667] [2021-10-28 09:39:55,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027566667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:55,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:55,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:39:55,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502092765] [2021-10-28 09:39:55,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:39:55,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:55,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:39:55,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:55,364 INFO L87 Difference]: Start difference. First operand 889 states and 1095 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:39:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:55,412 INFO L93 Difference]: Finished difference Result 897 states and 1101 transitions. [2021-10-28 09:39:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:39:55,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-10-28 09:39:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:55,415 INFO L225 Difference]: With dead ends: 897 [2021-10-28 09:39:55,416 INFO L226 Difference]: Without dead ends: 891 [2021-10-28 09:39:55,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-10-28 09:39:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 889. [2021-10-28 09:39:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 704 states have (on average 1.2443181818181819) internal successors, (876), 721 states have internal predecessors, (876), 97 states have call successors, (97), 74 states have call predecessors, (97), 87 states have return successors, (120), 97 states have call predecessors, (120), 92 states have call successors, (120) [2021-10-28 09:39:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1093 transitions. [2021-10-28 09:39:55,430 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1093 transitions. Word has length 71 [2021-10-28 09:39:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:55,431 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1093 transitions. [2021-10-28 09:39:55,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 09:39:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1093 transitions. [2021-10-28 09:39:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 09:39:55,432 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:55,432 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:55,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2021-10-28 09:39:55,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:55,633 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:55,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash -955000686, now seen corresponding path program 1 times [2021-10-28 09:39:55,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:55,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167866286] [2021-10-28 09:39:55,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:55,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:55,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:55,635 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:55,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-10-28 09:39:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:57,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:39:57,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:57,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:58,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:58,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167866286] [2021-10-28 09:39:58,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167866286] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:58,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:58,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-28 09:39:58,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924106420] [2021-10-28 09:39:58,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:39:58,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:39:58,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:39:58,191 INFO L87 Difference]: Start difference. First operand 889 states and 1093 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 09:39:58,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:58,266 INFO L93 Difference]: Finished difference Result 884 states and 1083 transitions. [2021-10-28 09:39:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:39:58,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 77 [2021-10-28 09:39:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:58,268 INFO L225 Difference]: With dead ends: 884 [2021-10-28 09:39:58,269 INFO L226 Difference]: Without dead ends: 879 [2021-10-28 09:39:58,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:39:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-10-28 09:39:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 877. [2021-10-28 09:39:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 695 states have (on average 1.2402877697841728) internal successors, (862), 710 states have internal predecessors, (862), 95 states have call successors, (95), 74 states have call predecessors, (95), 86 states have return successors, (117), 96 states have call predecessors, (117), 90 states have call successors, (117) [2021-10-28 09:39:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1074 transitions. [2021-10-28 09:39:58,284 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1074 transitions. Word has length 77 [2021-10-28 09:39:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:58,284 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1074 transitions. [2021-10-28 09:39:58,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 09:39:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1074 transitions. [2021-10-28 09:39:58,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:39:58,287 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:58,287 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:58,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:58,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:58,504 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 590470428, now seen corresponding path program 1 times [2021-10-28 09:39:58,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:58,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432315261] [2021-10-28 09:39:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:58,505 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:58,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:58,506 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:58,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-10-28 09:40:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:00,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:40:00,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:00,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:01,070 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:01,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432315261] [2021-10-28 09:40:01,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432315261] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:01,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:01,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:40:01,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389122250] [2021-10-28 09:40:01,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:40:01,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:01,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:40:01,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:40:01,072 INFO L87 Difference]: Start difference. First operand 877 states and 1074 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:40:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:01,095 INFO L93 Difference]: Finished difference Result 874 states and 1068 transitions. [2021-10-28 09:40:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:40:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-10-28 09:40:01,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:01,097 INFO L225 Difference]: With dead ends: 874 [2021-10-28 09:40:01,097 INFO L226 Difference]: Without dead ends: 863 [2021-10-28 09:40:01,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:40:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2021-10-28 09:40:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2021-10-28 09:40:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 683 states have (on average 1.2357247437774523) internal successors, (844), 698 states have internal predecessors, (844), 93 states have call successors, (93), 74 states have call predecessors, (93), 86 states have return successors, (115), 94 states have call predecessors, (115), 88 states have call successors, (115) [2021-10-28 09:40:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1052 transitions. [2021-10-28 09:40:01,110 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1052 transitions. Word has length 73 [2021-10-28 09:40:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:01,110 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1052 transitions. [2021-10-28 09:40:01,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 09:40:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1052 transitions. [2021-10-28 09:40:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:40:01,113 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:01,113 INFO L513 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, 1, 1, 1, 1, 1] [2021-10-28 09:40:01,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:01,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:01,320 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:40:01,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2040120255, now seen corresponding path program 1 times [2021-10-28 09:40:01,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:01,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284847084] [2021-10-28 09:40:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:01,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:01,322 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:01,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-10-28 09:40:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:40:03,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:03,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:04,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:04,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284847084] [2021-10-28 09:40:04,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284847084] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:04,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:04,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-28 09:40:04,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322184293] [2021-10-28 09:40:04,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:40:04,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:40:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:40:04,496 INFO L87 Difference]: Start difference. First operand 863 states and 1052 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:40:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:05,060 INFO L93 Difference]: Finished difference Result 929 states and 1122 transitions. [2021-10-28 09:40:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:40:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2021-10-28 09:40:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:05,063 INFO L225 Difference]: With dead ends: 929 [2021-10-28 09:40:05,063 INFO L226 Difference]: Without dead ends: 877 [2021-10-28 09:40:05,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-28 09:40:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-10-28 09:40:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 859. [2021-10-28 09:40:05,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 681 states have (on average 1.2334801762114538) internal successors, (840), 696 states have internal predecessors, (840), 91 states have call successors, (91), 74 states have call predecessors, (91), 86 states have return successors, (113), 92 states have call predecessors, (113), 86 states have call successors, (113) [2021-10-28 09:40:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1044 transitions. [2021-10-28 09:40:05,077 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1044 transitions. Word has length 72 [2021-10-28 09:40:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:05,077 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1044 transitions. [2021-10-28 09:40:05,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-28 09:40:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1044 transitions. [2021-10-28 09:40:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:40:05,079 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:05,079 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:05,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:05,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:05,300 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:40:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash -731464723, now seen corresponding path program 1 times [2021-10-28 09:40:05,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:05,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012559510] [2021-10-28 09:40:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:05,301 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:05,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:05,302 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:05,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-10-28 09:40:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:07,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:40:07,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:07,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:07,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:07,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012559510] [2021-10-28 09:40:07,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012559510] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:07,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:07,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:40:07,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703383685] [2021-10-28 09:40:07,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:40:07,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:07,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:40:07,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:40:07,820 INFO L87 Difference]: Start difference. First operand 859 states and 1044 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:40:07,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:07,877 INFO L93 Difference]: Finished difference Result 857 states and 1040 transitions. [2021-10-28 09:40:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:40:07,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2021-10-28 09:40:07,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:07,880 INFO L225 Difference]: With dead ends: 857 [2021-10-28 09:40:07,880 INFO L226 Difference]: Without dead ends: 851 [2021-10-28 09:40:07,880 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:40:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-10-28 09:40:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851. [2021-10-28 09:40:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 674 states have (on average 1.231454005934718) internal successors, (830), 689 states have internal predecessors, (830), 90 states have call successors, (90), 74 states have call predecessors, (90), 86 states have return successors, (111), 91 states have call predecessors, (111), 85 states have call successors, (111) [2021-10-28 09:40:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1031 transitions. [2021-10-28 09:40:07,892 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1031 transitions. Word has length 73 [2021-10-28 09:40:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:07,892 INFO L470 AbstractCegarLoop]: Abstraction has 851 states and 1031 transitions. [2021-10-28 09:40:07,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:40:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1031 transitions. [2021-10-28 09:40:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:40:07,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:07,894 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:07,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:08,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:08,095 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:40:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:08,095 INFO L85 PathProgramCache]: Analyzing trace with hash -586736919, now seen corresponding path program 1 times [2021-10-28 09:40:08,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:08,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846114533] [2021-10-28 09:40:08,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:08,096 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:08,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:08,097 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-10-28 09:40:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:10,280 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:10,757 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:40:10,757 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:40:10,758 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 09:40:10,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:40:10,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:10,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:10,989 INFO L731 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] [2021-10-28 09:40:10,993 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:40:11,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:40:11 BoogieIcfgContainer [2021-10-28 09:40:11,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:40:11,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:40:11,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:40:11,174 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:40:11,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:58" (3/4) ... [2021-10-28 09:40:11,178 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:40:11,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:40:11,180 INFO L168 Benchmark]: Toolchain (without parser) took 135430.99 ms. Allocated memory was 52.4 MB in the beginning and 234.9 MB in the end (delta: 182.5 MB). Free memory was 27.2 MB in the beginning and 96.6 MB in the end (delta: -69.4 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:11,181 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory is still 34.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:11,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.90 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.1 MB in the beginning and 50.7 MB in the end (delta: -23.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:11,182 INFO L168 Benchmark]: Boogie Preprocessor took 169.87 ms. Allocated memory is still 69.2 MB. Free memory was 50.7 MB in the beginning and 45.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:11,183 INFO L168 Benchmark]: RCFGBuilder took 1683.44 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 45.5 MB in the beginning and 66.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:11,183 INFO L168 Benchmark]: TraceAbstraction took 132738.22 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 65.9 MB in the beginning and 96.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:11,184 INFO L168 Benchmark]: Witness Printer took 5.35 ms. Allocated memory is still 234.9 MB. Free memory is still 96.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:11,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory is still 34.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 813.90 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.1 MB in the beginning and 50.7 MB in the end (delta: -23.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 169.87 ms. Allocated memory is still 69.2 MB. Free memory was 50.7 MB in the beginning and 45.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1683.44 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 45.5 MB in the beginning and 66.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 132738.22 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 65.9 MB in the beginning and 96.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.35 ms. Allocated memory is still 234.9 MB. Free memory is still 96.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 [\old(compFptr)=29, \old(compRegistered)=10, \old(customIrp)=37, \old(DC)=19, \old(DeviceUsageTypePaging)=26, \old(Executive)=22, \old(IPC)=35, \old(KernelMode)=18, \old(lowerDriverReturn)=20, \old(MPR1)=38, \old(MPR3)=33, \old(myStatus)=8, \old(NP)=36, \old(pended)=34, \old(pirp)=15, \old(routine)=21, \old(s)=24, \old(setEventCalled)=31, \old(SKIP1)=17, \old(SKIP2)=28, \old(Suspended)=9, \old(UNLOADED)=14, 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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=0, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=0, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1755] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=5, UNLOADED=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=41, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, 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() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, 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) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=41, 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(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioHPCdrDeviceControl(DeviceObject, Irp)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioDeviceControl(devobj, pirp)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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] [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, 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 [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=1, pirp=41, 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 31 procedures, 521 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 132.4s, OverallIterations: 60, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33466 SDtfs, 17259 SDslu, 186050 SDs, 0 SdLazy, 13774 SolverSat, 2557 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6963 GetRequests, 6307 SyntacticMatches, 0 SemanticMatches, 656 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1348occurred in iteration=18, InterpolantAutomatonStates: 569, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 59 MinimizatonAttempts, 1930 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 32.5s InterpolantComputationTime, 3529 NumberOfCodeBlocks, 3529 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 6794 ConstructedInterpolants, 0 QuantifiedInterpolants, 14351 SizeOfPredicates, 132 NumberOfNonLiveVariables, 23343 ConjunctsInSsa, 421 ConjunctsInUnsatCore, 118 InterpolantComputations, 118 PerfectInterpolantSequences, 14/14 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 [2021-10-28 09:40:11,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeed53b3-b40d-4565-ae1c-b323b332f0e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...