./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad29ac750d7eee43ee0f4c2b7f90b5e7c26b142d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 19:56:47,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:56:47,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:56:47,654 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:56:47,654 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:56:47,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:56:47,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:56:47,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:56:47,656 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:56:47,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:56:47,657 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:56:47,657 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:56:47,658 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:56:47,658 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:56:47,659 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:56:47,659 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:56:47,659 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:56:47,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:56:47,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:56:47,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:56:47,662 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:56:47,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:56:47,664 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:56:47,664 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:56:47,664 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:56:47,664 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:56:47,665 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:56:47,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:56:47,666 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:56:47,666 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:56:47,666 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:56:47,667 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:56:47,667 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:56:47,667 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:56:47,667 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:56:47,668 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:56:47,668 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 19:56:47,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:56:47,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:56:47,675 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 19:56:47,675 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 19:56:47,676 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 19:56:47,676 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 19:56:47,676 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 19:56:47,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 19:56:47,677 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 19:56:47,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 19:56:47,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 19:56:47,678 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer 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 ! call(__VERIFIER_error())) ) 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 -> ad29ac750d7eee43ee0f4c2b7f90b5e7c26b142d [2018-12-01 19:56:47,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:56:47,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:56:47,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:56:47,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:56:47,708 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:56:47,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock_false-unreach-call_true-termination.i [2018-12-01 19:56:47,745 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/data/239c05779/e3e04b3a6f7e4124af15d0dc87ab5a0b/FLAG9a99ece5b [2018-12-01 19:56:48,092 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:56:48,093 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/sv-benchmarks/c/ldv-sets/test_mutex_double_lock_false-unreach-call_true-termination.i [2018-12-01 19:56:48,100 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/data/239c05779/e3e04b3a6f7e4124af15d0dc87ab5a0b/FLAG9a99ece5b [2018-12-01 19:56:48,109 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/data/239c05779/e3e04b3a6f7e4124af15d0dc87ab5a0b [2018-12-01 19:56:48,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:56:48,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:56:48,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:56:48,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:56:48,114 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:56:48,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73559806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48, skipping insertion in model container [2018-12-01 19:56:48,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:56:48,140 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:56:48,340 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:56:48,346 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:56:48,376 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:56:48,400 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:56:48,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48 WrapperNode [2018-12-01 19:56:48,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:56:48,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:56:48,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:56:48,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:56:48,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:56:48,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:56:48,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:56:48,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:56:48,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... [2018-12-01 19:56:48,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:56:48,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:56:48,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:56:48,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:56:48,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 19:56:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 19:56:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-12-01 19:56:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2018-12-01 19:56:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-01 19:56:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-01 19:56:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2018-12-01 19:56:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2018-12-01 19:56:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-01 19:56:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-12-01 19:56:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-12-01 19:56:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 19:56:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-12-01 19:56:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 19:56:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 19:56:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2018-12-01 19:56:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2018-12-01 19:56:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2018-12-01 19:56:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-01 19:56:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-01 19:56:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-01 19:56:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-01 19:56:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2018-12-01 19:56:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2018-12-01 19:56:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-12-01 19:56:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-12-01 19:56:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2018-12-01 19:56:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2018-12-01 19:56:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:56:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:56:48,687 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:56:48,687 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-01 19:56:48,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:56:48 BoogieIcfgContainer [2018-12-01 19:56:48,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:56:48,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 19:56:48,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 19:56:48,690 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 19:56:48,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 07:56:48" (1/3) ... [2018-12-01 19:56:48,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9044d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:56:48, skipping insertion in model container [2018-12-01 19:56:48,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:56:48" (2/3) ... [2018-12-01 19:56:48,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9044d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:56:48, skipping insertion in model container [2018-12-01 19:56:48,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:56:48" (3/3) ... [2018-12-01 19:56:48,692 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock_false-unreach-call_true-termination.i [2018-12-01 19:56:48,697 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 19:56:48,702 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-01 19:56:48,711 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-01 19:56:48,727 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 19:56:48,728 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 19:56:48,728 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 19:56:48,728 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 19:56:48,728 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 19:56:48,728 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 19:56:48,728 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 19:56:48,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 19:56:48,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 19:56:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2018-12-01 19:56:48,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 19:56:48,743 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:48,743 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:48,744 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:48,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:48,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1594759354, now seen corresponding path program 1 times [2018-12-01 19:56:48,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:48,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:48,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:48,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:48,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 19:56:48,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:56:48,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 19:56:48,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 19:56:48,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 19:56:48,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 19:56:48,870 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 2 states. [2018-12-01 19:56:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:56:48,890 INFO L93 Difference]: Finished difference Result 188 states and 225 transitions. [2018-12-01 19:56:48,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 19:56:48,890 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2018-12-01 19:56:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:56:48,896 INFO L225 Difference]: With dead ends: 188 [2018-12-01 19:56:48,896 INFO L226 Difference]: Without dead ends: 92 [2018-12-01 19:56:48,898 INFO L631 BasicCegarLoop]: 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 [2018-12-01 19:56:48,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-12-01 19:56:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-12-01 19:56:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-12-01 19:56:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2018-12-01 19:56:48,925 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 30 [2018-12-01 19:56:48,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:56:48,926 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2018-12-01 19:56:48,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 19:56:48,926 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2018-12-01 19:56:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 19:56:48,927 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:48,927 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:48,927 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:48,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:48,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1879861572, now seen corresponding path program 1 times [2018-12-01 19:56:48,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:48,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:48,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:48,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:48,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 19:56:48,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:56:48,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 19:56:48,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 19:56:48,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 19:56:48,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 19:56:48,984 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 4 states. [2018-12-01 19:56:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:56:49,003 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2018-12-01 19:56:49,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 19:56:49,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-12-01 19:56:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:56:49,005 INFO L225 Difference]: With dead ends: 98 [2018-12-01 19:56:49,005 INFO L226 Difference]: Without dead ends: 96 [2018-12-01 19:56:49,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 19:56:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-01 19:56:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-01 19:56:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-01 19:56:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2018-12-01 19:56:49,014 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 30 [2018-12-01 19:56:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:56:49,014 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2018-12-01 19:56:49,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 19:56:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2018-12-01 19:56:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 19:56:49,014 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:49,015 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:49,015 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:49,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -305258267, now seen corresponding path program 1 times [2018-12-01 19:56:49,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:49,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 19:56:49,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:56:49,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 19:56:49,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 19:56:49,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 19:56:49,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 19:56:49,089 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand 5 states. [2018-12-01 19:56:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:56:49,345 INFO L93 Difference]: Finished difference Result 257 states and 311 transitions. [2018-12-01 19:56:49,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 19:56:49,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-01 19:56:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:56:49,348 INFO L225 Difference]: With dead ends: 257 [2018-12-01 19:56:49,348 INFO L226 Difference]: Without dead ends: 175 [2018-12-01 19:56:49,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-01 19:56:49,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-12-01 19:56:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 140. [2018-12-01 19:56:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-12-01 19:56:49,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 168 transitions. [2018-12-01 19:56:49,367 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 168 transitions. Word has length 30 [2018-12-01 19:56:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:56:49,367 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 168 transitions. [2018-12-01 19:56:49,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 19:56:49,368 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 168 transitions. [2018-12-01 19:56:49,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-01 19:56:49,369 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:49,370 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:49,370 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:49,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:49,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1875239642, now seen corresponding path program 1 times [2018-12-01 19:56:49,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:49,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:49,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:49,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-12-01 19:56:49,419 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 19:56:49,419 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 19:56:49,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:49,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:56:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-01 19:56:49,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 19:56:49,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2018-12-01 19:56:49,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 19:56:49,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 19:56:49,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 19:56:49,510 INFO L87 Difference]: Start difference. First operand 140 states and 168 transitions. Second operand 4 states. [2018-12-01 19:56:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:56:49,534 INFO L93 Difference]: Finished difference Result 254 states and 306 transitions. [2018-12-01 19:56:49,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 19:56:49,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-12-01 19:56:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:56:49,537 INFO L225 Difference]: With dead ends: 254 [2018-12-01 19:56:49,537 INFO L226 Difference]: Without dead ends: 146 [2018-12-01 19:56:49,538 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 19:56:49,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-12-01 19:56:49,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-12-01 19:56:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-12-01 19:56:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 174 transitions. [2018-12-01 19:56:49,549 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 174 transitions. Word has length 78 [2018-12-01 19:56:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:56:49,549 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 174 transitions. [2018-12-01 19:56:49,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 19:56:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 174 transitions. [2018-12-01 19:56:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-01 19:56:49,550 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:49,551 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:49,551 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:49,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash 885640952, now seen corresponding path program 1 times [2018-12-01 19:56:49,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:49,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:49,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:49,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-01 19:56:49,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 19:56:49,737 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 19:56:49,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:56:49,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:56:49,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-01 19:56:49,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 19:56:49,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,838 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-01 19:56:49,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 19:56:49,839 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,840 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,843 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2018-12-01 19:56:49,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-01 19:56:49,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 19:56:49,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,880 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,889 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-01 19:56:49,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 19:56:49,890 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,891 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 19:56:49,896 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2018-12-01 19:56:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-01 19:56:50,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 19:56:50,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-12-01 19:56:50,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-01 19:56:50,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-01 19:56:50,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2018-12-01 19:56:50,027 INFO L87 Difference]: Start difference. First operand 146 states and 174 transitions. Second operand 21 states. [2018-12-01 19:56:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:56:51,260 INFO L93 Difference]: Finished difference Result 362 states and 428 transitions. [2018-12-01 19:56:51,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-01 19:56:51,260 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 78 [2018-12-01 19:56:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:56:51,262 INFO L225 Difference]: With dead ends: 362 [2018-12-01 19:56:51,262 INFO L226 Difference]: Without dead ends: 230 [2018-12-01 19:56:51,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=433, Invalid=1729, Unknown=0, NotChecked=0, Total=2162 [2018-12-01 19:56:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-01 19:56:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 160. [2018-12-01 19:56:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-12-01 19:56:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 183 transitions. [2018-12-01 19:56:51,277 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 183 transitions. Word has length 78 [2018-12-01 19:56:51,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:56:51,277 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 183 transitions. [2018-12-01 19:56:51,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-01 19:56:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 183 transitions. [2018-12-01 19:56:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-12-01 19:56:51,278 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:56:51,278 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:56:51,278 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:56:51,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:56:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash 559822637, now seen corresponding path program 1 times [2018-12-01 19:56:51,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:56:51,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:56:51,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:51,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:56:51,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:56:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:56:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:56:51,322 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 19:56:51,343 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 19:56:51,344 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 19:56:51,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 07:56:51 BoogieIcfgContainer [2018-12-01 19:56:51,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 19:56:51,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:56:51,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:56:51,355 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:56:51,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:56:48" (3/4) ... [2018-12-01 19:56:51,357 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 19:56:51,362 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 19:56:51,362 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 19:56:51,395 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_667594f1-77d2-495d-9f2c-161bf974aff7/bin-2019/uautomizer/witness.graphml [2018-12-01 19:56:51,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:56:51,396 INFO L168 Benchmark]: Toolchain (without parser) took 3284.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 949.5 MB in the beginning and 1.0 GB in the end (delta: -57.7 MB). Peak memory consumption was 106.4 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,397 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:56:51,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,397 INFO L168 Benchmark]: Boogie Preprocessor took 21.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,397 INFO L168 Benchmark]: RCFGBuilder took 246.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,398 INFO L168 Benchmark]: TraceAbstraction took 2666.24 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.7 MB). Peak memory consumption was 97.4 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,398 INFO L168 Benchmark]: Witness Printer took 40.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:56:51,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2666.24 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.7 MB). Peak memory consumption was 97.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L652] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [\old(mutexes)=null, \old(mutexes)=null, mutexes={19:0}] [L679] CALL foo() VAL [mutexes={19:0}] [L668] FCALL ldv_initialize() VAL [mutexes={19:0}] [L669] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={19:0}] [L563] void *ptr = malloc(size); [L565] return ptr; VAL [\old(size)=8, \result={14:0}, malloc(size)={14:0}, mutexes={19:0}, ptr={14:0}, size=8] [L669] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={14:0}, mutexes={19:0}] [L669] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L670] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [\old(size)=8, mutexes={19:0}] [L563] void *ptr = malloc(size); [L565] return ptr; VAL [\old(size)=8, \result={20:0}, malloc(size)={20:0}, mutexes={19:0}, ptr={20:0}, size=8] [L670] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [ldv_successful_malloc(sizeof(struct mutex))={20:0}, m1={14:0}, mutexes={19:0}] [L670] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L671] CALL mutex_lock(m1) VAL [m={14:0}, mutexes={19:0}] [L656] CALL ldv_is_in_set(m, &mutexes) VAL [e={14:0}, mutexes={19:0}, s={19:0}] [L641] struct ldv_list_element *m; [L642] EXPR (s)->next [L642] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L642] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L642] COND FALSE !(&m->list != (s)) VAL [__mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L647] return 0; VAL [\result=0, __mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L656] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=0, m={14:0}, m={14:0}, mutexes={19:0}] [L656] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L657] CALL ldv_set_add(m, &mutexes) VAL [mutexes={19:0}, new={14:0}, s={19:0}] [L623] CALL, EXPR ldv_is_in_set(new, s) VAL [e={14:0}, mutexes={19:0}, s={19:0}] [L641] struct ldv_list_element *m; [L642] EXPR (s)->next [L642] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L642] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L642] COND FALSE !(&m->list != (s)) VAL [__mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L647] return 0; VAL [\result=0, __mptr={19:0}, e={14:0}, e={14:0}, m={19:-4}, mutexes={19:0}, s={19:0}, s={19:0}] [L623] RET, EXPR ldv_is_in_set(new, s) VAL [ldv_is_in_set(new, s)=0, mutexes={19:0}, new={14:0}, new={14:0}, s={19:0}, s={19:0}] [L623] COND TRUE !ldv_is_in_set(new, s) [L624] struct ldv_list_element *le; VAL [mutexes={19:0}, new={14:0}, new={14:0}, s={19:0}, s={19:0}] [L625] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, mutexes={19:0}] [L563] void *ptr = malloc(size); [L565] return ptr; VAL [\old(size)=12, \result={16:0}, malloc(size)={16:0}, mutexes={19:0}, ptr={16:0}, size=12] [L625] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [ldv_successful_malloc(sizeof(struct ldv_list_element))={16:0}, mutexes={19:0}, new={14:0}, new={14:0}, s={19:0}, s={19:0}] [L625] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L626] le->e = new VAL [le={16:0}, mutexes={19:0}, new={14:0}, new={14:0}, s={19:0}, s={19:0}] [L627] CALL ldv_list_add(&le->list, s) VAL [head={19:0}, mutexes={19:0}, new={16:4}] [L595] EXPR head->next VAL [head={19:0}, head={19:0}, head->next={19:0}, mutexes={19:0}, new={16:4}, new={16:4}] [L595] CALL __ldv_list_add(new, head, head->next) VAL [mutexes={19:0}, new={16:4}, next={19:0}, prev={19:0}] [L583] next->prev = new [L584] new->next = next [L585] new->prev = prev [L586] prev->next = new VAL [mutexes={19:0}, new={16:4}, new={16:4}, next={19:0}, next={19:0}, prev={19:0}, prev={19:0}] [L595] RET __ldv_list_add(new, head, head->next) VAL [head={19:0}, head={19:0}, head->next={19:0}, mutexes={19:0}, new={16:4}, new={16:4}] [L627] RET ldv_list_add(&le->list, s) VAL [le={16:0}, mutexes={19:0}, new={14:0}, new={14:0}, s={19:0}, s={19:0}] [L657] RET ldv_set_add(m, &mutexes) VAL [m={14:0}, m={14:0}, mutexes={19:0}] [L671] RET mutex_lock(m1) VAL [m1={14:0}, m2={20:0}, mutexes={19:0}] [L672] CALL mutex_lock(m1) VAL [m={14:0}, mutexes={19:0}] [L656] CALL ldv_is_in_set(m, &mutexes) VAL [e={14:0}, mutexes={19:0}, s={19:0}] [L641] struct ldv_list_element *m; [L642] EXPR (s)->next [L642] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L642] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [__mptr={16:4}, e={14:0}, e={14:0}, m={16:0}, mutexes={19:0}, s={19:0}, s={19:0}] [L642] COND TRUE &m->list != (s) [L643] EXPR m->e VAL [__mptr={16:4}, e={14:0}, e={14:0}, m={16:0}, m->e={14:0}, mutexes={19:0}, s={19:0}, s={19:0}] [L643] COND TRUE m->e == e [L644] return 1; VAL [\result=1, __mptr={16:4}, e={14:0}, e={14:0}, m={16:0}, mutexes={19:0}, s={19:0}, s={19:0}] [L656] RET ldv_is_in_set(m, &mutexes) VAL [ldv_is_in_set(m, &mutexes)=1, m={14:0}, m={14:0}, mutexes={19:0}] [L656] COND TRUE ldv_is_in_set(m, &mutexes) [L656] __VERIFIER_error() VAL [m={14:0}, m={14:0}, mutexes={19:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 101 locations, 3 error locations. UNSAFE Result, 2.6s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 520 SDtfs, 634 SDslu, 1125 SDs, 0 SdLazy, 1524 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 105 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 121260 SizeOfPredicates, 16 NumberOfNonLiveVariables, 868 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 213/261 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...