./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_9.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8 --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 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:38:54,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:38:54,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:38:54,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:38:54,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:38:54,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:38:54,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:38:54,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:38:54,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:38:54,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:38:54,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:38:54,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:38:54,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:38:54,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:38:54,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:38:54,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:38:54,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:38:54,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:38:54,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:38:54,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:38:54,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:38:54,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:38:54,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:38:54,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:38:54,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:38:54,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:38:54,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:38:54,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:38:54,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:38:54,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:38:54,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:38:54,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:38:54,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:38:54,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:38:54,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:38:54,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:38:54,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:38:54,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:38:54,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:38:54,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:38:54,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:38:54,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:38:54,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:38:54,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:38:54,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:38:54,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:38:54,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:38:54,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:38:54,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:38:54,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:38:54,660 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:38:54,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:38:54,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:38:54,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:38:54,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:38:54,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:38:54,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:38:54,663 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:38:54,664 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:38:54,664 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:38:54,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:38:54,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:38:54,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:38:54,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:38:54,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:38:54,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:38:54,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:38:54,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:54,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:38:54,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:38:54,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:38:54,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:38:54,669 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_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 [2022-11-16 11:38:55,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:38:55,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:38:55,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:38:55,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:38:55,035 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:38:55,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/locks/test_locks_9.c [2022-11-16 11:38:55,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/data/14d93e28a/99d0da50009e4c219710008f0951b406/FLAGaa0d54710 [2022-11-16 11:38:55,803 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:38:55,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/sv-benchmarks/c/locks/test_locks_9.c [2022-11-16 11:38:55,818 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/data/14d93e28a/99d0da50009e4c219710008f0951b406/FLAGaa0d54710 [2022-11-16 11:38:56,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/data/14d93e28a/99d0da50009e4c219710008f0951b406 [2022-11-16 11:38:56,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:38:56,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:38:56,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:56,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:38:56,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:38:56,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6993d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56, skipping insertion in model container [2022-11-16 11:38:56,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:38:56,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:38:56,476 WARN L229 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_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/sv-benchmarks/c/locks/test_locks_9.c[3555,3568] [2022-11-16 11:38:56,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:56,502 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:38:56,544 WARN L229 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_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/sv-benchmarks/c/locks/test_locks_9.c[3555,3568] [2022-11-16 11:38:56,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:56,571 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:38:56,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56 WrapperNode [2022-11-16 11:38:56,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:56,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:56,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:38:56,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:38:56,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,646 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 127 [2022-11-16 11:38:56,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:56,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:38:56,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:38:56,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:38:56,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:38:56,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:38:56,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:38:56,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:38:56,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (1/1) ... [2022-11-16 11:38:56,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:56,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:38:56,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:38:56,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:38:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:38:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:38:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:38:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:38:56,912 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:38:56,915 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:38:57,226 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:38:57,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:38:57,235 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:38:57,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:57 BoogieIcfgContainer [2022-11-16 11:38:57,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:38:57,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:38:57,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:38:57,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:38:57,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:38:56" (1/3) ... [2022-11-16 11:38:57,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14228429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:57, skipping insertion in model container [2022-11-16 11:38:57,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:56" (2/3) ... [2022-11-16 11:38:57,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14228429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:57, skipping insertion in model container [2022-11-16 11:38:57,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:57" (3/3) ... [2022-11-16 11:38:57,250 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2022-11-16 11:38:57,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:38:57,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:38:57,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:38:57,421 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f2c0604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:38:57,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 11:38:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:38:57,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:57,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:38:57,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:57,472 INFO L85 PathProgramCache]: Analyzing trace with hash 28702923, now seen corresponding path program 1 times [2022-11-16 11:38:57,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:57,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115959452] [2022-11-16 11:38:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:57,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:57,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115959452] [2022-11-16 11:38:57,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115959452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:57,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:57,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:38:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365049080] [2022-11-16 11:38:57,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:57,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:38:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:38:57,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:38:57,776 INFO L87 Difference]: Start difference. First operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:57,800 INFO L93 Difference]: Finished difference Result 38 states and 64 transitions. [2022-11-16 11:38:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:38:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 11:38:57,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:57,818 INFO L225 Difference]: With dead ends: 38 [2022-11-16 11:38:57,818 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 11:38:57,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:38:57,829 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:57,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 11:38:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-16 11:38:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.8235294117647058) internal successors, (62), 35 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 62 transitions. [2022-11-16 11:38:57,874 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 62 transitions. Word has length 5 [2022-11-16 11:38:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:57,874 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 62 transitions. [2022-11-16 11:38:57,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions. [2022-11-16 11:38:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:38:57,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:57,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:38:57,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:38:57,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash 889697419, now seen corresponding path program 1 times [2022-11-16 11:38:57,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:57,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868858352] [2022-11-16 11:38:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868858352] [2022-11-16 11:38:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868858352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:57,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:57,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:38:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358169192] [2022-11-16 11:38:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:57,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:57,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:57,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:57,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:57,968 INFO L87 Difference]: Start difference. First operand 36 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:57,981 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2022-11-16 11:38:57,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:57,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 11:38:57,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:57,984 INFO L225 Difference]: With dead ends: 35 [2022-11-16 11:38:57,984 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 11:38:57,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:57,986 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:57,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 11:38:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-16 11:38:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2022-11-16 11:38:57,993 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2022-11-16 11:38:57,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:57,994 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2022-11-16 11:38:57,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2022-11-16 11:38:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:38:57,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:57,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:57,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:38:57,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1657621241, now seen corresponding path program 1 times [2022-11-16 11:38:57,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:57,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835081941] [2022-11-16 11:38:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:57,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835081941] [2022-11-16 11:38:58,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835081941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610026693] [2022-11-16 11:38:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,073 INFO L87 Difference]: Start difference. First operand 33 states and 59 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,117 INFO L93 Difference]: Finished difference Result 63 states and 113 transitions. [2022-11-16 11:38:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 11:38:58,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,119 INFO L225 Difference]: With dead ends: 63 [2022-11-16 11:38:58,119 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 11:38:58,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,121 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 43 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 115 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 11:38:58,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2022-11-16 11:38:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2022-11-16 11:38:58,148 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2022-11-16 11:38:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,149 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2022-11-16 11:38:58,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2022-11-16 11:38:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:38:58,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:38:58,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1399455803, now seen corresponding path program 1 times [2022-11-16 11:38:58,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532390755] [2022-11-16 11:38:58,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532390755] [2022-11-16 11:38:58,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532390755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379269372] [2022-11-16 11:38:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,243 INFO L87 Difference]: Start difference. First operand 43 states and 78 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,270 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2022-11-16 11:38:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 11:38:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,272 INFO L225 Difference]: With dead ends: 63 [2022-11-16 11:38:58,272 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 11:38:58,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,274 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 43 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 129 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 11:38:58,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2022-11-16 11:38:58,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.8333333333333333) internal successors, (110), 60 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 110 transitions. [2022-11-16 11:38:58,289 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 110 transitions. Word has length 16 [2022-11-16 11:38:58,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,290 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 110 transitions. [2022-11-16 11:38:58,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 110 transitions. [2022-11-16 11:38:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:38:58,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:38:58,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 153562753, now seen corresponding path program 1 times [2022-11-16 11:38:58,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728391046] [2022-11-16 11:38:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728391046] [2022-11-16 11:38:58,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728391046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633682966] [2022-11-16 11:38:58,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,407 INFO L87 Difference]: Start difference. First operand 61 states and 110 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,442 INFO L93 Difference]: Finished difference Result 66 states and 113 transitions. [2022-11-16 11:38:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 11:38:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,444 INFO L225 Difference]: With dead ends: 66 [2022-11-16 11:38:58,444 INFO L226 Difference]: Without dead ends: 66 [2022-11-16 11:38:58,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,447 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 144 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-16 11:38:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-11-16 11:38:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 63 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 112 transitions. [2022-11-16 11:38:58,457 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 112 transitions. Word has length 17 [2022-11-16 11:38:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,458 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 112 transitions. [2022-11-16 11:38:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,459 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 112 transitions. [2022-11-16 11:38:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:38:58,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:38:58,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,462 INFO L85 PathProgramCache]: Analyzing trace with hash -433243261, now seen corresponding path program 1 times [2022-11-16 11:38:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45307296] [2022-11-16 11:38:58,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45307296] [2022-11-16 11:38:58,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45307296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431394658] [2022-11-16 11:38:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,519 INFO L87 Difference]: Start difference. First operand 64 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,541 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2022-11-16 11:38:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 11:38:58,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,544 INFO L225 Difference]: With dead ends: 119 [2022-11-16 11:38:58,544 INFO L226 Difference]: Without dead ends: 119 [2022-11-16 11:38:58,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,546 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 113 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-16 11:38:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 85. [2022-11-16 11:38:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.7738095238095237) internal successors, (149), 84 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 149 transitions. [2022-11-16 11:38:58,558 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 149 transitions. Word has length 17 [2022-11-16 11:38:58,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,559 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 149 transitions. [2022-11-16 11:38:58,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 149 transitions. [2022-11-16 11:38:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:38:58,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:38:58,561 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash -175077823, now seen corresponding path program 1 times [2022-11-16 11:38:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22559307] [2022-11-16 11:38:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22559307] [2022-11-16 11:38:58,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22559307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190821586] [2022-11-16 11:38:58,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,612 INFO L87 Difference]: Start difference. First operand 85 states and 149 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,632 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2022-11-16 11:38:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 11:38:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,635 INFO L225 Difference]: With dead ends: 121 [2022-11-16 11:38:58,635 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 11:38:58,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,637 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 130 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 11:38:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2022-11-16 11:38:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.7542372881355932) internal successors, (207), 118 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 207 transitions. [2022-11-16 11:38:58,669 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 207 transitions. Word has length 17 [2022-11-16 11:38:58,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,669 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 207 transitions. [2022-11-16 11:38:58,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 207 transitions. [2022-11-16 11:38:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:38:58,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:38:58,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -545425190, now seen corresponding path program 1 times [2022-11-16 11:38:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757172547] [2022-11-16 11:38:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757172547] [2022-11-16 11:38:58,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757172547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205074069] [2022-11-16 11:38:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,777 INFO L87 Difference]: Start difference. First operand 119 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,805 INFO L93 Difference]: Finished difference Result 123 states and 208 transitions. [2022-11-16 11:38:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 11:38:58,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,807 INFO L225 Difference]: With dead ends: 123 [2022-11-16 11:38:58,808 INFO L226 Difference]: Without dead ends: 123 [2022-11-16 11:38:58,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,809 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 44 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-16 11:38:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2022-11-16 11:38:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.725) internal successors, (207), 120 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 207 transitions. [2022-11-16 11:38:58,819 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 207 transitions. Word has length 18 [2022-11-16 11:38:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,819 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 207 transitions. [2022-11-16 11:38:58,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 207 transitions. [2022-11-16 11:38:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:38:58,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:38:58,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1132231204, now seen corresponding path program 1 times [2022-11-16 11:38:58,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661299742] [2022-11-16 11:38:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:58,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661299742] [2022-11-16 11:38:58,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661299742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:58,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:58,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802070865] [2022-11-16 11:38:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:58,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,860 INFO L87 Difference]: Start difference. First operand 121 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:58,875 INFO L93 Difference]: Finished difference Result 231 states and 388 transitions. [2022-11-16 11:38:58,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:58,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 11:38:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:58,878 INFO L225 Difference]: With dead ends: 231 [2022-11-16 11:38:58,878 INFO L226 Difference]: Without dead ends: 231 [2022-11-16 11:38:58,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:58,897 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:58,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 115 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-16 11:38:58,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2022-11-16 11:38:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6973684210526316) internal successors, (387), 228 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 387 transitions. [2022-11-16 11:38:58,925 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 387 transitions. Word has length 18 [2022-11-16 11:38:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:58,926 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 387 transitions. [2022-11-16 11:38:58,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 387 transitions. [2022-11-16 11:38:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:38:58,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:58,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:58,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:38:58,929 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:58,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1390396642, now seen corresponding path program 1 times [2022-11-16 11:38:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:58,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808729696] [2022-11-16 11:38:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:58,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808729696] [2022-11-16 11:38:59,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808729696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636749231] [2022-11-16 11:38:59,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,024 INFO L87 Difference]: Start difference. First operand 229 states and 387 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,052 INFO L93 Difference]: Finished difference Result 287 states and 488 transitions. [2022-11-16 11:38:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 11:38:59,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,055 INFO L225 Difference]: With dead ends: 287 [2022-11-16 11:38:59,055 INFO L226 Difference]: Without dead ends: 287 [2022-11-16 11:38:59,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,057 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 37 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-16 11:38:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 229. [2022-11-16 11:38:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 228 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 383 transitions. [2022-11-16 11:38:59,086 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 383 transitions. Word has length 18 [2022-11-16 11:38:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,086 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 383 transitions. [2022-11-16 11:38:59,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 383 transitions. [2022-11-16 11:38:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:38:59,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:38:59,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,090 INFO L85 PathProgramCache]: Analyzing trace with hash -739214602, now seen corresponding path program 1 times [2022-11-16 11:38:59,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886503830] [2022-11-16 11:38:59,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886503830] [2022-11-16 11:38:59,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886503830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367722801] [2022-11-16 11:38:59,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,150 INFO L87 Difference]: Start difference. First operand 229 states and 383 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,165 INFO L93 Difference]: Finished difference Result 419 states and 704 transitions. [2022-11-16 11:38:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,166 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 11:38:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,168 INFO L225 Difference]: With dead ends: 419 [2022-11-16 11:38:59,168 INFO L226 Difference]: Without dead ends: 419 [2022-11-16 11:38:59,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,170 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 109 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-11-16 11:38:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 321. [2022-11-16 11:38:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.646875) internal successors, (527), 320 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 527 transitions. [2022-11-16 11:38:59,186 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 527 transitions. Word has length 19 [2022-11-16 11:38:59,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,186 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 527 transitions. [2022-11-16 11:38:59,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 527 transitions. [2022-11-16 11:38:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:38:59,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:38:59,190 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash -481049164, now seen corresponding path program 1 times [2022-11-16 11:38:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74304133] [2022-11-16 11:38:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74304133] [2022-11-16 11:38:59,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74304133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141309317] [2022-11-16 11:38:59,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,233 INFO L87 Difference]: Start difference. First operand 321 states and 527 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,249 INFO L93 Difference]: Finished difference Result 443 states and 716 transitions. [2022-11-16 11:38:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,250 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 11:38:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,252 INFO L225 Difference]: With dead ends: 443 [2022-11-16 11:38:59,253 INFO L226 Difference]: Without dead ends: 443 [2022-11-16 11:38:59,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,254 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 40 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 132 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-11-16 11:38:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2022-11-16 11:38:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.625) internal successors, (715), 440 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 715 transitions. [2022-11-16 11:38:59,271 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 715 transitions. Word has length 19 [2022-11-16 11:38:59,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,272 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 715 transitions. [2022-11-16 11:38:59,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 715 transitions. [2022-11-16 11:38:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:38:59,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:38:59,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1440601487, now seen corresponding path program 1 times [2022-11-16 11:38:59,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487896794] [2022-11-16 11:38:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487896794] [2022-11-16 11:38:59,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487896794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898969463] [2022-11-16 11:38:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,323 INFO L87 Difference]: Start difference. First operand 441 states and 715 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,347 INFO L93 Difference]: Finished difference Result 455 states and 724 transitions. [2022-11-16 11:38:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 11:38:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,357 INFO L225 Difference]: With dead ends: 455 [2022-11-16 11:38:59,357 INFO L226 Difference]: Without dead ends: 455 [2022-11-16 11:38:59,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,359 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 42 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 132 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-16 11:38:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-11-16 11:38:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.5995575221238938) internal successors, (723), 452 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 723 transitions. [2022-11-16 11:38:59,379 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 723 transitions. Word has length 20 [2022-11-16 11:38:59,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,380 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 723 transitions. [2022-11-16 11:38:59,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,380 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 723 transitions. [2022-11-16 11:38:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:38:59,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:38:59,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2027407501, now seen corresponding path program 1 times [2022-11-16 11:38:59,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259318038] [2022-11-16 11:38:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259318038] [2022-11-16 11:38:59,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259318038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413179868] [2022-11-16 11:38:59,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,462 INFO L87 Difference]: Start difference. First operand 453 states and 723 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,495 INFO L93 Difference]: Finished difference Result 807 states and 1292 transitions. [2022-11-16 11:38:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 11:38:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,504 INFO L225 Difference]: With dead ends: 807 [2022-11-16 11:38:59,505 INFO L226 Difference]: Without dead ends: 807 [2022-11-16 11:38:59,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,506 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 107 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-11-16 11:38:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 645. [2022-11-16 11:38:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.5574534161490683) internal successors, (1003), 644 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1003 transitions. [2022-11-16 11:38:59,537 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1003 transitions. Word has length 20 [2022-11-16 11:38:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,537 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1003 transitions. [2022-11-16 11:38:59,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1003 transitions. [2022-11-16 11:38:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:38:59,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:38:59,551 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1769242063, now seen corresponding path program 1 times [2022-11-16 11:38:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671620360] [2022-11-16 11:38:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671620360] [2022-11-16 11:38:59,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671620360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468658075] [2022-11-16 11:38:59,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,648 INFO L87 Difference]: Start difference. First operand 645 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,670 INFO L93 Difference]: Finished difference Result 871 states and 1332 transitions. [2022-11-16 11:38:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 11:38:59,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,674 INFO L225 Difference]: With dead ends: 871 [2022-11-16 11:38:59,675 INFO L226 Difference]: Without dead ends: 871 [2022-11-16 11:38:59,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,679 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-11-16 11:38:59,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 869. [2022-11-16 11:38:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.5334101382488479) internal successors, (1331), 868 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1331 transitions. [2022-11-16 11:38:59,709 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1331 transitions. Word has length 20 [2022-11-16 11:38:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,710 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1331 transitions. [2022-11-16 11:38:59,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1331 transitions. [2022-11-16 11:38:59,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 11:38:59,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:38:59,715 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1575091945, now seen corresponding path program 1 times [2022-11-16 11:38:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937066865] [2022-11-16 11:38:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937066865] [2022-11-16 11:38:59,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937066865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424595805] [2022-11-16 11:38:59,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,793 INFO L87 Difference]: Start difference. First operand 869 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,816 INFO L93 Difference]: Finished difference Result 887 states and 1332 transitions. [2022-11-16 11:38:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-16 11:38:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,821 INFO L225 Difference]: With dead ends: 887 [2022-11-16 11:38:59,821 INFO L226 Difference]: Without dead ends: 887 [2022-11-16 11:38:59,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,824 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-11-16 11:38:59,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2022-11-16 11:38:59,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.505656108597285) internal successors, (1331), 884 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1331 transitions. [2022-11-16 11:38:59,856 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1331 transitions. Word has length 21 [2022-11-16 11:38:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:59,856 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1331 transitions. [2022-11-16 11:38:59,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1331 transitions. [2022-11-16 11:38:59,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 11:38:59,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:59,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:59,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:38:59,859 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:38:59,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash 988285931, now seen corresponding path program 1 times [2022-11-16 11:38:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797498670] [2022-11-16 11:38:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:59,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:59,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:59,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797498670] [2022-11-16 11:38:59,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797498670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:59,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:59,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082527547] [2022-11-16 11:38:59,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:59,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:59,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:59,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,928 INFO L87 Difference]: Start difference. First operand 885 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:59,953 INFO L93 Difference]: Finished difference Result 1543 states and 2324 transitions. [2022-11-16 11:38:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-16 11:38:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:59,961 INFO L225 Difference]: With dead ends: 1543 [2022-11-16 11:38:59,961 INFO L226 Difference]: Without dead ends: 1543 [2022-11-16 11:38:59,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:59,963 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:59,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 105 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-11-16 11:38:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1285. [2022-11-16 11:38:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 1.4602803738317758) internal successors, (1875), 1284 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1875 transitions. [2022-11-16 11:38:59,999 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1875 transitions. Word has length 21 [2022-11-16 11:39:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,001 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1875 transitions. [2022-11-16 11:39:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1875 transitions. [2022-11-16 11:39:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 11:39:00,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:39:00,004 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1246451369, now seen corresponding path program 1 times [2022-11-16 11:39:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099393329] [2022-11-16 11:39:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099393329] [2022-11-16 11:39:00,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099393329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342447312] [2022-11-16 11:39:00,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,054 INFO L87 Difference]: Start difference. First operand 1285 states and 1875 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,110 INFO L93 Difference]: Finished difference Result 1703 states and 2436 transitions. [2022-11-16 11:39:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-16 11:39:00,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,116 INFO L225 Difference]: With dead ends: 1703 [2022-11-16 11:39:00,117 INFO L226 Difference]: Without dead ends: 1703 [2022-11-16 11:39:00,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,119 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 38 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-11-16 11:39:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1701. [2022-11-16 11:39:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4323529411764706) internal successors, (2435), 1700 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2435 transitions. [2022-11-16 11:39:00,174 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2435 transitions. Word has length 21 [2022-11-16 11:39:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,174 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2435 transitions. [2022-11-16 11:39:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2435 transitions. [2022-11-16 11:39:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 11:39:00,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:39:00,178 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,178 INFO L85 PathProgramCache]: Analyzing trace with hash 572308166, now seen corresponding path program 1 times [2022-11-16 11:39:00,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861513137] [2022-11-16 11:39:00,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861513137] [2022-11-16 11:39:00,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861513137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899130846] [2022-11-16 11:39:00,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,227 INFO L87 Difference]: Start difference. First operand 1701 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,247 INFO L93 Difference]: Finished difference Result 1735 states and 2436 transitions. [2022-11-16 11:39:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 11:39:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,254 INFO L225 Difference]: With dead ends: 1735 [2022-11-16 11:39:00,254 INFO L226 Difference]: Without dead ends: 1735 [2022-11-16 11:39:00,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,256 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 40 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-11-16 11:39:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1733. [2022-11-16 11:39:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1732 states have (on average 1.4058891454965359) internal successors, (2435), 1732 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2435 transitions. [2022-11-16 11:39:00,332 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2435 transitions. Word has length 22 [2022-11-16 11:39:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,332 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2435 transitions. [2022-11-16 11:39:00,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2435 transitions. [2022-11-16 11:39:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 11:39:00,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:39:00,337 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash -14497848, now seen corresponding path program 1 times [2022-11-16 11:39:00,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675016625] [2022-11-16 11:39:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675016625] [2022-11-16 11:39:00,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675016625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505384783] [2022-11-16 11:39:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,384 INFO L87 Difference]: Start difference. First operand 1733 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,414 INFO L93 Difference]: Finished difference Result 2951 states and 4132 transitions. [2022-11-16 11:39:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 11:39:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,425 INFO L225 Difference]: With dead ends: 2951 [2022-11-16 11:39:00,425 INFO L226 Difference]: Without dead ends: 2951 [2022-11-16 11:39:00,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,428 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 25 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-11-16 11:39:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2565. [2022-11-16 11:39:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 1.361544461778471) internal successors, (3491), 2564 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3491 transitions. [2022-11-16 11:39:00,506 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3491 transitions. Word has length 22 [2022-11-16 11:39:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,506 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3491 transitions. [2022-11-16 11:39:00,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3491 transitions. [2022-11-16 11:39:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 11:39:00,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:39:00,511 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash 243667590, now seen corresponding path program 1 times [2022-11-16 11:39:00,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589556000] [2022-11-16 11:39:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589556000] [2022-11-16 11:39:00,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589556000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483074584] [2022-11-16 11:39:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,550 INFO L87 Difference]: Start difference. First operand 2565 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,580 INFO L93 Difference]: Finished difference Result 3335 states and 4420 transitions. [2022-11-16 11:39:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 11:39:00,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,592 INFO L225 Difference]: With dead ends: 3335 [2022-11-16 11:39:00,592 INFO L226 Difference]: Without dead ends: 3335 [2022-11-16 11:39:00,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,595 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 37 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2022-11-16 11:39:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3333. [2022-11-16 11:39:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 1.3262304921968788) internal successors, (4419), 3332 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 4419 transitions. [2022-11-16 11:39:00,683 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 4419 transitions. Word has length 22 [2022-11-16 11:39:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,684 INFO L495 AbstractCegarLoop]: Abstraction has 3333 states and 4419 transitions. [2022-11-16 11:39:00,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 4419 transitions. [2022-11-16 11:39:00,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 11:39:00,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:39:00,689 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash -449217570, now seen corresponding path program 1 times [2022-11-16 11:39:00,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531859438] [2022-11-16 11:39:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531859438] [2022-11-16 11:39:00,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531859438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235155117] [2022-11-16 11:39:00,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,737 INFO L87 Difference]: Start difference. First operand 3333 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,765 INFO L93 Difference]: Finished difference Result 3399 states and 4420 transitions. [2022-11-16 11:39:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 11:39:00,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,817 INFO L225 Difference]: With dead ends: 3399 [2022-11-16 11:39:00,817 INFO L226 Difference]: Without dead ends: 3399 [2022-11-16 11:39:00,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,818 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 39 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 120 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2022-11-16 11:39:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3397. [2022-11-16 11:39:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3396 states have (on average 1.3012367491166077) internal successors, (4419), 3396 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4419 transitions. [2022-11-16 11:39:00,895 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4419 transitions. Word has length 23 [2022-11-16 11:39:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:00,895 INFO L495 AbstractCegarLoop]: Abstraction has 3397 states and 4419 transitions. [2022-11-16 11:39:00,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4419 transitions. [2022-11-16 11:39:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 11:39:00,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:00,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:00,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:39:00,900 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1036023584, now seen corresponding path program 1 times [2022-11-16 11:39:00,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:00,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007201430] [2022-11-16 11:39:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:00,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:00,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007201430] [2022-11-16 11:39:00,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007201430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:00,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:00,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77133924] [2022-11-16 11:39:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,929 INFO L87 Difference]: Start difference. First operand 3397 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:00,962 INFO L93 Difference]: Finished difference Result 5639 states and 7236 transitions. [2022-11-16 11:39:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:00,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 11:39:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:00,980 INFO L225 Difference]: With dead ends: 5639 [2022-11-16 11:39:00,980 INFO L226 Difference]: Without dead ends: 5639 [2022-11-16 11:39:00,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:00,981 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:00,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:00,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-11-16 11:39:01,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5125. [2022-11-16 11:39:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 1.2620999219359874) internal successors, (6467), 5124 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6467 transitions. [2022-11-16 11:39:01,081 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6467 transitions. Word has length 23 [2022-11-16 11:39:01,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:01,082 INFO L495 AbstractCegarLoop]: Abstraction has 5125 states and 6467 transitions. [2022-11-16 11:39:01,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6467 transitions. [2022-11-16 11:39:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 11:39:01,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:01,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:01,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:39:01,090 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:01,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -777858146, now seen corresponding path program 1 times [2022-11-16 11:39:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:01,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727363071] [2022-11-16 11:39:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:01,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:01,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727363071] [2022-11-16 11:39:01,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727363071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:01,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:01,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723278568] [2022-11-16 11:39:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:01,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:01,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:01,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:01,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,118 INFO L87 Difference]: Start difference. First operand 5125 states and 6467 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:01,173 INFO L93 Difference]: Finished difference Result 6535 states and 7940 transitions. [2022-11-16 11:39:01,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:01,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 11:39:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:01,206 INFO L225 Difference]: With dead ends: 6535 [2022-11-16 11:39:01,206 INFO L226 Difference]: Without dead ends: 6535 [2022-11-16 11:39:01,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,208 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 36 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:01,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2022-11-16 11:39:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 6533. [2022-11-16 11:39:01,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6533 states, 6532 states have (on average 1.2154011022657685) internal successors, (7939), 6532 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6533 states to 6533 states and 7939 transitions. [2022-11-16 11:39:01,365 INFO L78 Accepts]: Start accepts. Automaton has 6533 states and 7939 transitions. Word has length 23 [2022-11-16 11:39:01,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:01,365 INFO L495 AbstractCegarLoop]: Abstraction has 6533 states and 7939 transitions. [2022-11-16 11:39:01,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6533 states and 7939 transitions. [2022-11-16 11:39:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:39:01,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:01,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:01,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:39:01,376 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743973, now seen corresponding path program 1 times [2022-11-16 11:39:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:01,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978664988] [2022-11-16 11:39:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:01,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:01,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978664988] [2022-11-16 11:39:01,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978664988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:01,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:01,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:01,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365105475] [2022-11-16 11:39:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:01,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:01,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:01,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,406 INFO L87 Difference]: Start difference. First operand 6533 states and 7939 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:01,445 INFO L93 Difference]: Finished difference Result 6663 states and 7940 transitions. [2022-11-16 11:39:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:01,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:39:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:01,458 INFO L225 Difference]: With dead ends: 6663 [2022-11-16 11:39:01,459 INFO L226 Difference]: Without dead ends: 6663 [2022-11-16 11:39:01,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,460 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 38 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:01,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 116 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:01,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-11-16 11:39:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6661. [2022-11-16 11:39:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 6660 states have (on average 1.1920420420420421) internal successors, (7939), 6660 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 7939 transitions. [2022-11-16 11:39:01,641 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 7939 transitions. Word has length 24 [2022-11-16 11:39:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:01,642 INFO L495 AbstractCegarLoop]: Abstraction has 6661 states and 7939 transitions. [2022-11-16 11:39:01,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 7939 transitions. [2022-11-16 11:39:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:39:01,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:01,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:01,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:39:01,653 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1656417309, now seen corresponding path program 1 times [2022-11-16 11:39:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:01,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726687321] [2022-11-16 11:39:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:01,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:01,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:01,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726687321] [2022-11-16 11:39:01,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726687321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:01,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:01,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535167857] [2022-11-16 11:39:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:01,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:01,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,702 INFO L87 Difference]: Start difference. First operand 6661 states and 7939 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:01,755 INFO L93 Difference]: Finished difference Result 10757 states and 12419 transitions. [2022-11-16 11:39:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:39:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:01,776 INFO L225 Difference]: With dead ends: 10757 [2022-11-16 11:39:01,776 INFO L226 Difference]: Without dead ends: 10757 [2022-11-16 11:39:01,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:01,778 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:01,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 98 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-11-16 11:39:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 10245. [2022-11-16 11:39:02,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10245 states, 10244 states have (on average 1.1623389301054277) internal successors, (11907), 10244 states have internal predecessors, (11907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:02,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10245 states to 10245 states and 11907 transitions. [2022-11-16 11:39:02,030 INFO L78 Accepts]: Start accepts. Automaton has 10245 states and 11907 transitions. Word has length 24 [2022-11-16 11:39:02,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:02,031 INFO L495 AbstractCegarLoop]: Abstraction has 10245 states and 11907 transitions. [2022-11-16 11:39:02,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 10245 states and 11907 transitions. [2022-11-16 11:39:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:39:02,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:02,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:02,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:39:02,047 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-16 11:39:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:02,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1914582747, now seen corresponding path program 1 times [2022-11-16 11:39:02,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:02,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911348518] [2022-11-16 11:39:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:02,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:02,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:02,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911348518] [2022-11-16 11:39:02,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911348518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:02,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:02,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:02,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401445565] [2022-11-16 11:39:02,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:02,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:02,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:02,080 INFO L87 Difference]: Start difference. First operand 10245 states and 11907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:02,193 INFO L93 Difference]: Finished difference Result 12803 states and 14082 transitions. [2022-11-16 11:39:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:39:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:02,195 INFO L225 Difference]: With dead ends: 12803 [2022-11-16 11:39:02,195 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:39:02,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:02,197 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:02,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:39:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:39:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:39:02,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-11-16 11:39:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:02,199 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:39:02,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:39:02,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:39:02,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-16 11:39:02,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-16 11:39:02,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:39:02,212 INFO L444 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] [2022-11-16 11:39:02,215 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:39:02,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:39:02 BoogieIcfgContainer [2022-11-16 11:39:02,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:39:02,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:39:02,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:39:02,233 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:39:02,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:57" (3/4) ... [2022-11-16 11:39:02,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:39:02,258 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-16 11:39:02,258 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:39:02,259 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:39:02,259 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:39:02,330 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:39:02,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:39:02,331 INFO L158 Benchmark]: Toolchain (without parser) took 6173.89ms. Allocated memory was 138.4MB in the beginning and 224.4MB in the end (delta: 86.0MB). Free memory was 105.9MB in the beginning and 141.9MB in the end (delta: -35.9MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,332 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:39:02,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.00ms. Allocated memory is still 138.4MB. Free memory was 105.7MB in the beginning and 113.8MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.55ms. Allocated memory is still 138.4MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:39:02,333 INFO L158 Benchmark]: Boogie Preprocessor took 59.12ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 110.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,333 INFO L158 Benchmark]: RCFGBuilder took 530.53ms. Allocated memory is still 138.4MB. Free memory was 110.8MB in the beginning and 97.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,337 INFO L158 Benchmark]: TraceAbstraction took 4991.79ms. Allocated memory was 138.4MB in the beginning and 224.4MB in the end (delta: 86.0MB). Free memory was 96.6MB in the beginning and 145.0MB in the end (delta: -48.4MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,337 INFO L158 Benchmark]: Witness Printer took 97.61ms. Allocated memory is still 224.4MB. Free memory was 145.0MB in the beginning and 141.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:39:02,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.00ms. Allocated memory is still 138.4MB. Free memory was 105.7MB in the beginning and 113.8MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.55ms. Allocated memory is still 138.4MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.12ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 110.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.53ms. Allocated memory is still 138.4MB. Free memory was 110.8MB in the beginning and 97.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4991.79ms. Allocated memory was 138.4MB in the beginning and 224.4MB in the end (delta: 86.0MB). Free memory was 96.6MB in the beginning and 145.0MB in the end (delta: -48.4MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 97.61ms. Allocated memory is still 224.4MB. Free memory was 145.0MB in the beginning and 141.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 149]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 974 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 974 mSDsluCounter, 3211 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1228 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 1983 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10245occurred in iteration=26, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 2072 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 1028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:39:02,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea58dccf-fc29-46f2-94bf-6a309dcadeb6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE