./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1da916ece07620806106e0c366576485c8e9b5bd7eb5de51a7dec1eaa535c120 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:40:11,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:11,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:11,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:11,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:11,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:11,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:11,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:11,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:11,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:11,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:11,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:11,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:11,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:11,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:11,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:11,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:11,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:11,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:11,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:11,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:11,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:11,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:11,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:11,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:11,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:11,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:11,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:11,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:11,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:11,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:11,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:11,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:11,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:11,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:11,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:11,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:11,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:11,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:11,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:11,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:11,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:40:11,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:11,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:11,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:11,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:11,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:11,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:11,865 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:11,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:11,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:11,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:40:11,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:11,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:11,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:40:11,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:11,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:40:11,868 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:11,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:40:11,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:11,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:40:11,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:11,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:11,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:11,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:11,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:11,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:11,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:40:11,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:40:11,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:40:11,872 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:40:11,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:40:11,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:40:11,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:11,875 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_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1da916ece07620806106e0c366576485c8e9b5bd7eb5de51a7dec1eaa535c120 [2021-10-28 23:40:12,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:12,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:12,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:12,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:12,278 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:12,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2021-10-28 23:40:12,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/data/e26abcfd1/05db6e3a99264d1cb15d6822cf02269b/FLAG2ebff404d [2021-10-28 23:40:13,036 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:13,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2021-10-28 23:40:13,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/data/e26abcfd1/05db6e3a99264d1cb15d6822cf02269b/FLAG2ebff404d [2021-10-28 23:40:13,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/data/e26abcfd1/05db6e3a99264d1cb15d6822cf02269b [2021-10-28 23:40:13,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:13,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:40:13,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:13,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:13,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:13,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:13,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e7e887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13, skipping insertion in model container [2021-10-28 23:40:13,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:13,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:13,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:13,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[867,880] [2021-10-28 23:40:13,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:13,851 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:13,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[867,880] [2021-10-28 23:40:13,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:13,993 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:13,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13 WrapperNode [2021-10-28 23:40:13,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:13,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:13,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:40:13,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:40:14,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:14,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:14,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:14,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:14,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:14,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:14,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:14,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:14,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (1/1) ... [2021-10-28 23:40:14,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:14,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:14,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:14,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:40:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:40:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:40:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:40:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:40:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:40:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:14,197 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:40:14,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:14,587 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:40:14,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:14 BoogieIcfgContainer [2021-10-28 23:40:14,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:14,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:14,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:14,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:14,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:13" (1/3) ... [2021-10-28 23:40:14,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372da919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:14, skipping insertion in model container [2021-10-28 23:40:14,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:13" (2/3) ... [2021-10-28 23:40:14,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372da919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:14, skipping insertion in model container [2021-10-28 23:40:14,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:14" (3/3) ... [2021-10-28 23:40:14,612 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2021-10-28 23:40:14,617 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:40:14,617 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:14,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:40:14,618 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:40:14,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,670 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,677 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,682 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:40:14,696 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:40:14,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:14,764 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:40:14,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:40:14,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 131 flow [2021-10-28 23:40:14,819 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-10-28 23:40:14,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:40:14,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2021-10-28 23:40:14,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 63 transitions, 131 flow [2021-10-28 23:40:14,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2021-10-28 23:40:14,855 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-10-28 23:40:14,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:40:14,856 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:40:14,860 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:14,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:40:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1302575016, now seen corresponding path program 1 times [2021-10-28 23:40:14,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:14,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414960199] [2021-10-28 23:40:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:14,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:15,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:15,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414960199] [2021-10-28 23:40:15,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414960199] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:15,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:15,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:40:15,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128014178] [2021-10-28 23:40:15,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:15,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:15,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:15,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:15,363 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-10-28 23:40:15,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:40:15,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-10-28 23:40:15,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:40:15,492 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-10-28 23:40:15,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:40:15,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 147 event pairs, 0 based on Foata normal form. 3/83 useless extension candidates. Maximal degree in co-relation 72. Up to 8 conditions per place. [2021-10-28 23:40:15,495 INFO L132 encePairwiseOnDemand]: 58/63 looper letters, 5 selfloop transitions, 2 changer transitions 8/60 dead transitions. [2021-10-28 23:40:15,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 60 transitions, 153 flow [2021-10-28 23:40:15,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:40:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:40:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 388 transitions. [2021-10-28 23:40:15,539 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8798185941043084 [2021-10-28 23:40:15,540 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 388 transitions. [2021-10-28 23:40:15,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 388 transitions. [2021-10-28 23:40:15,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:40:15,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 388 transitions. [2021-10-28 23:40:15,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 55.42857142857143) internal successors, (388), 7 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,586 INFO L186 Difference]: Start difference. First operand has 56 places, 52 transitions, 107 flow. Second operand 7 states and 388 transitions. [2021-10-28 23:40:15,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 60 transitions, 153 flow [2021-10-28 23:40:15,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 60 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:40:15,595 INFO L242 Difference]: Finished difference. Result has 66 places, 52 transitions, 122 flow [2021-10-28 23:40:15,598 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-10-28 23:40:15,599 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2021-10-28 23:40:15,599 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 122 flow [2021-10-28 23:40:15,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,600 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:40:15,600 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:15,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:40:15,601 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:40:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash -736985321, now seen corresponding path program 1 times [2021-10-28 23:40:15,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:15,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163038516] [2021-10-28 23:40:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:15,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:15,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:15,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163038516] [2021-10-28 23:40:15,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163038516] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:15,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:15,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:40:15,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762102238] [2021-10-28 23:40:15,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:40:15,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:40:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:40:15,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 63 [2021-10-28 23:40:15,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:40:15,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 63 [2021-10-28 23:40:15,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:40:15,803 INFO L129 PetriNetUnfolder]: 7/83 cut-off events. [2021-10-28 23:40:15,803 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-28 23:40:15,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 83 events. 7/83 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 4 based on Foata normal form. 3/86 useless extension candidates. Maximal degree in co-relation 122. Up to 20 conditions per place. [2021-10-28 23:40:15,805 INFO L132 encePairwiseOnDemand]: 59/63 looper letters, 12 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2021-10-28 23:40:15,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 158 flow [2021-10-28 23:40:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:40:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:40:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2021-10-28 23:40:15,808 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2021-10-28 23:40:15,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 153 transitions. [2021-10-28 23:40:15,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 153 transitions. [2021-10-28 23:40:15,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:40:15,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 153 transitions. [2021-10-28 23:40:15,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,814 INFO L186 Difference]: Start difference. First operand has 66 places, 52 transitions, 122 flow. Second operand 3 states and 153 transitions. [2021-10-28 23:40:15,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 158 flow [2021-10-28 23:40:15,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 148 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-10-28 23:40:15,819 INFO L242 Difference]: Finished difference. Result has 59 places, 52 transitions, 120 flow [2021-10-28 23:40:15,819 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2021-10-28 23:40:15,820 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2021-10-28 23:40:15,820 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 120 flow [2021-10-28 23:40:15,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,821 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:40:15,821 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:15,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:40:15,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:40:15,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2085496571, now seen corresponding path program 2 times [2021-10-28 23:40:15,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:15,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903341856] [2021-10-28 23:40:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:15,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:15,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:15,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903341856] [2021-10-28 23:40:15,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903341856] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:15,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:15,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:40:15,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289616790] [2021-10-28 23:40:15,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:40:15,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:40:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:40:15,921 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 63 [2021-10-28 23:40:15,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:15,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:40:15,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 63 [2021-10-28 23:40:15,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:40:16,007 INFO L129 PetriNetUnfolder]: 1/71 cut-off events. [2021-10-28 23:40:16,008 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-28 23:40:16,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 71 events. 1/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 5/76 useless extension candidates. Maximal degree in co-relation 69. Up to 12 conditions per place. [2021-10-28 23:40:16,010 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 9 selfloop transitions, 6 changer transitions 1/54 dead transitions. [2021-10-28 23:40:16,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 158 flow [2021-10-28 23:40:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:40:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:40:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2021-10-28 23:40:16,025 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2021-10-28 23:40:16,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 154 transitions. [2021-10-28 23:40:16,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 154 transitions. [2021-10-28 23:40:16,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:40:16,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 154 transitions. [2021-10-28 23:40:16,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,033 INFO L186 Difference]: Start difference. First operand has 59 places, 52 transitions, 120 flow. Second operand 3 states and 154 transitions. [2021-10-28 23:40:16,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 158 flow [2021-10-28 23:40:16,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:40:16,038 INFO L242 Difference]: Finished difference. Result has 61 places, 53 transitions, 138 flow [2021-10-28 23:40:16,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2021-10-28 23:40:16,039 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2021-10-28 23:40:16,040 INFO L470 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 138 flow [2021-10-28 23:40:16,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,040 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:40:16,041 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:16,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:40:16,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:40:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash 801692432, now seen corresponding path program 1 times [2021-10-28 23:40:16,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:16,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331507954] [2021-10-28 23:40:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:16,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:16,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:16,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331507954] [2021-10-28 23:40:16,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331507954] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:16,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:16,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:40:16,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540087807] [2021-10-28 23:40:16,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:16,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:16,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:16,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:16,301 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-10-28 23:40:16,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:40:16,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-10-28 23:40:16,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:40:16,391 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-10-28 23:40:16,391 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-10-28 23:40:16,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 47 events. 1/47 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 68. Up to 8 conditions per place. [2021-10-28 23:40:16,392 INFO L132 encePairwiseOnDemand]: 59/63 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-10-28 23:40:16,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 43 transitions, 154 flow [2021-10-28 23:40:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:40:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:40:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 194 transitions. [2021-10-28 23:40:16,394 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6158730158730159 [2021-10-28 23:40:16,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 194 transitions. [2021-10-28 23:40:16,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 194 transitions. [2021-10-28 23:40:16,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:40:16,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 194 transitions. [2021-10-28 23:40:16,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,399 INFO L186 Difference]: Start difference. First operand has 61 places, 53 transitions, 138 flow. Second operand 5 states and 194 transitions. [2021-10-28 23:40:16,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 43 transitions, 154 flow [2021-10-28 23:40:16,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 143 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:40:16,402 INFO L242 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2021-10-28 23:40:16,402 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2021-10-28 23:40:16,403 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2021-10-28 23:40:16,403 INFO L470 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2021-10-28 23:40:16,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:16,406 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:40:16,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:40:16,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:40:16,411 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-10-28 23:40:16,415 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:40:16,415 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:16,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:16 BasicIcfg [2021-10-28 23:40:16,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:16,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:16,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:16,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:16,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:14" (3/4) ... [2021-10-28 23:40:16,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:40:16,437 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 23:40:16,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 23:40:16,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:40:16,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:40:16,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:40:16,519 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:40:16,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:16,521 INFO L168 Benchmark]: Toolchain (without parser) took 3249.83 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 65.7 MB in the end (delta: -13.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,522 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:16,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.67 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 75.9 MB in the end (delta: -23.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.58 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,527 INFO L168 Benchmark]: Boogie Preprocessor took 29.02 ms. Allocated memory is still 109.1 MB. Free memory was 73.8 MB in the beginning and 72.9 MB in the end (delta: 950.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,527 INFO L168 Benchmark]: RCFGBuilder took 511.74 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 61.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,528 INFO L168 Benchmark]: TraceAbstraction took 1826.82 ms. Allocated memory is still 109.1 MB. Free memory was 60.6 MB in the beginning and 69.2 MB in the end (delta: -8.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:16,528 INFO L168 Benchmark]: Witness Printer took 101.05 ms. Allocated memory is still 109.1 MB. Free memory was 68.5 MB in the beginning and 65.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:16,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 709.67 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 75.9 MB in the end (delta: -23.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.58 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.02 ms. Allocated memory is still 109.1 MB. Free memory was 73.8 MB in the beginning and 72.9 MB in the end (delta: 950.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 511.74 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 61.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1826.82 ms. Allocated memory is still 109.1 MB. Free memory was 60.6 MB in the beginning and 69.2 MB in the end (delta: -8.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 101.05 ms. Allocated memory is still 109.1 MB. Free memory was 68.5 MB in the beginning and 65.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 17 SDslu, 21 SDs, 0 SdLazy, 89 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:40:16,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9301e90-1f09-4c12-9e69-0b23cc9c2530/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...