./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_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_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg --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 8613412b8726d3b599d1070a08e5076400c9af2cb1dc0094be8862a6cb6e986d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:34:43,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:34:43,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:34:43,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:34:43,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:34:43,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:34:43,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:34:43,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:34:43,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:34:43,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:34:43,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:34:43,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:34:43,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:34:43,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:34:43,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:34:43,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:34:43,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:34:43,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:34:43,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:34:43,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:34:43,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:34:43,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:34:43,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:34:43,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:34:43,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:34:43,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:34:43,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:34:43,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:34:43,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:34:43,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:34:43,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:34:43,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:34:43,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:34:43,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:34:43,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:34:43,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:34:43,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:34:43,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:34:43,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:34:43,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:34:43,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:34:43,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:34:43,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:34:43,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:34:43,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:34:43,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:34:43,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:34:43,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:34:43,790 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:34:43,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:34:43,790 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:34:43,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:34:43,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:34:43,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:34:43,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:34:43,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:34:43,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:34:43,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:34:43,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:34:43,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:34:43,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:34:43,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:34:43,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:34:43,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:34:43,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:34:43,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:34:43,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:34:43,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:34:43,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:34:43,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:34:43,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:34:43,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:34:43,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:34:43,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:34:43,799 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_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8613412b8726d3b599d1070a08e5076400c9af2cb1dc0094be8862a6cb6e986d [2021-10-28 08:34:44,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:34:44,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:34:44,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:34:44,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:34:44,125 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:34:44,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2021-10-28 08:34:44,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/data/10513d3aa/6d2bb92f0a8d428a868e9d0c3d7f58f1/FLAG25815c006 [2021-10-28 08:34:44,797 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:34:44,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2021-10-28 08:34:44,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/data/10513d3aa/6d2bb92f0a8d428a868e9d0c3d7f58f1/FLAG25815c006 [2021-10-28 08:34:45,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/data/10513d3aa/6d2bb92f0a8d428a868e9d0c3d7f58f1 [2021-10-28 08:34:45,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:34:45,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:34:45,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:34:45,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:34:45,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:34:45,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639e5e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45, skipping insertion in model container [2021-10-28 08:34:45,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:34:45,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:34:45,330 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_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[843,856] [2021-10-28 08:34:45,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:34:45,532 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:34:45,548 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_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[843,856] [2021-10-28 08:34:45,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:34:45,642 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:34:45,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45 WrapperNode [2021-10-28 08:34:45,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:34:45,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:34:45,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:34:45,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:34:45,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:34:45,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:34:45,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:34:45,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:34:45,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:34:45,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:34:45,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:34:45,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:34:45,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (1/1) ... [2021-10-28 08:34:45,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:34:45,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:34:45,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:34:45,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:34:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:34:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:34:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 08:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 08:34:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 08:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:34:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:34:45,839 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 08:34:46,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:34:46,203 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:34:46,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:46 BoogieIcfgContainer [2021-10-28 08:34:46,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:34:46,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:34:46,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:34:46,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:34:46,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:34:45" (1/3) ... [2021-10-28 08:34:46,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfd9c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:34:46, skipping insertion in model container [2021-10-28 08:34:46,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:34:45" (2/3) ... [2021-10-28 08:34:46,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfd9c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:34:46, skipping insertion in model container [2021-10-28 08:34:46,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:46" (3/3) ... [2021-10-28 08:34:46,222 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2021-10-28 08:34:46,227 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 08:34:46,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:34:46,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 08:34:46,228 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 08:34:46,253 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,253 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,253 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,253 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,254 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,254 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,254 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,254 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,254 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,262 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,262 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,263 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,263 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:34:46,287 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-28 08:34:46,341 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:34:46,349 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 08:34:46,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 08:34:46,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 186 flow [2021-10-28 08:34:46,462 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2021-10-28 08:34:46,462 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 08:34:46,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 2/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-10-28 08:34:46,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 186 flow [2021-10-28 08:34:46,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 153 flow [2021-10-28 08:34:46,528 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-10-28 08:34:46,529 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 08:34:46,529 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:46,530 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] [2021-10-28 08:34:46,530 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:46,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1902436862, now seen corresponding path program 1 times [2021-10-28 08:34:46,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:46,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604917891] [2021-10-28 08:34:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:46,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:34:46,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:46,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604917891] [2021-10-28 08:34:46,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604917891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:46,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:46,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:34:46,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229634607] [2021-10-28 08:34:46,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:34:46,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:34:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:34:47,017 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 89 [2021-10-28 08:34:47,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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 08:34:47,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:47,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 89 [2021-10-28 08:34:47,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:47,241 INFO L129 PetriNetUnfolder]: 21/200 cut-off events. [2021-10-28 08:34:47,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 08:34:47,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 200 events. 21/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 725 event pairs, 0 based on Foata normal form. 5/202 useless extension candidates. Maximal degree in co-relation 229. Up to 17 conditions per place. [2021-10-28 08:34:47,245 INFO L132 encePairwiseOnDemand]: 77/89 looper letters, 16 selfloop transitions, 13 changer transitions 9/99 dead transitions. [2021-10-28 08:34:47,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 99 transitions, 277 flow [2021-10-28 08:34:47,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:34:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 08:34:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2021-10-28 08:34:47,264 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8639200998751561 [2021-10-28 08:34:47,265 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 692 transitions. [2021-10-28 08:34:47,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 692 transitions. [2021-10-28 08:34:47,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:47,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 692 transitions. [2021-10-28 08:34:47,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.88888888888889) internal successors, (692), 9 states have internal predecessors, (692), 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 08:34:47,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 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 08:34:47,288 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 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 08:34:47,290 INFO L186 Difference]: Start difference. First operand has 78 places, 75 transitions, 153 flow. Second operand 9 states and 692 transitions. [2021-10-28 08:34:47,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 99 transitions, 277 flow [2021-10-28 08:34:47,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 99 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 08:34:47,298 INFO L242 Difference]: Finished difference. Result has 91 places, 82 transitions, 240 flow [2021-10-28 08:34:47,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=91, PETRI_TRANSITIONS=82} [2021-10-28 08:34:47,302 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 13 predicate places. [2021-10-28 08:34:47,302 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 240 flow [2021-10-28 08:34:47,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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 08:34:47,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:47,303 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, 1, 1, 1] [2021-10-28 08:34:47,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:34:47,304 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1775440514, now seen corresponding path program 1 times [2021-10-28 08:34:47,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:47,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50590714] [2021-10-28 08:34:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:47,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:47,527 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 08:34:47,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:47,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50590714] [2021-10-28 08:34:47,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50590714] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:47,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:47,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:34:47,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333163817] [2021-10-28 08:34:47,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:34:47,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:47,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:34:47,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:34:47,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2021-10-28 08:34:47,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 08:34:47,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:47,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2021-10-28 08:34:47,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:47,756 INFO L129 PetriNetUnfolder]: 67/370 cut-off events. [2021-10-28 08:34:47,757 INFO L130 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2021-10-28 08:34:47,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 370 events. 67/370 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1830 event pairs, 41 based on Foata normal form. 3/370 useless extension candidates. Maximal degree in co-relation 632. Up to 150 conditions per place. [2021-10-28 08:34:47,764 INFO L132 encePairwiseOnDemand]: 79/89 looper letters, 27 selfloop transitions, 8 changer transitions 4/93 dead transitions. [2021-10-28 08:34:47,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 332 flow [2021-10-28 08:34:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:34:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 08:34:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2021-10-28 08:34:47,767 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7172284644194756 [2021-10-28 08:34:47,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 383 transitions. [2021-10-28 08:34:47,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 383 transitions. [2021-10-28 08:34:47,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:47,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 383 transitions. [2021-10-28 08:34:47,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:34:47,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:47,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:47,771 INFO L186 Difference]: Start difference. First operand has 91 places, 82 transitions, 240 flow. Second operand 6 states and 383 transitions. [2021-10-28 08:34:47,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 332 flow [2021-10-28 08:34:47,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 93 transitions, 320 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-10-28 08:34:47,780 INFO L242 Difference]: Finished difference. Result has 95 places, 83 transitions, 254 flow [2021-10-28 08:34:47,780 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2021-10-28 08:34:47,781 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 17 predicate places. [2021-10-28 08:34:47,781 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 254 flow [2021-10-28 08:34:47,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 08:34:47,781 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:47,782 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, 1, 1, 1, 1] [2021-10-28 08:34:47,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:34:47,782 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:47,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1320012940, now seen corresponding path program 1 times [2021-10-28 08:34:47,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:47,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868745406] [2021-10-28 08:34:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:47,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:47,922 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 08:34:47,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:47,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868745406] [2021-10-28 08:34:47,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868745406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:47,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:47,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:34:47,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028112614] [2021-10-28 08:34:47,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:34:47,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:34:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:34:47,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2021-10-28 08:34:47,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 254 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 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 08:34:47,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:47,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2021-10-28 08:34:47,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:48,097 INFO L129 PetriNetUnfolder]: 32/244 cut-off events. [2021-10-28 08:34:48,097 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2021-10-28 08:34:48,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 244 events. 32/244 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 909 event pairs, 11 based on Foata normal form. 15/259 useless extension candidates. Maximal degree in co-relation 443. Up to 60 conditions per place. [2021-10-28 08:34:48,099 INFO L132 encePairwiseOnDemand]: 79/89 looper letters, 27 selfloop transitions, 10 changer transitions 11/86 dead transitions. [2021-10-28 08:34:48,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 86 transitions, 346 flow [2021-10-28 08:34:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:34:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 08:34:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 321 transitions. [2021-10-28 08:34:48,102 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.601123595505618 [2021-10-28 08:34:48,102 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 321 transitions. [2021-10-28 08:34:48,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 321 transitions. [2021-10-28 08:34:48,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:48,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 321 transitions. [2021-10-28 08:34:48,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 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 08:34:48,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:48,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:48,106 INFO L186 Difference]: Start difference. First operand has 95 places, 83 transitions, 254 flow. Second operand 6 states and 321 transitions. [2021-10-28 08:34:48,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 86 transitions, 346 flow [2021-10-28 08:34:48,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 86 transitions, 339 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-10-28 08:34:48,112 INFO L242 Difference]: Finished difference. Result has 97 places, 72 transitions, 227 flow [2021-10-28 08:34:48,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=97, PETRI_TRANSITIONS=72} [2021-10-28 08:34:48,113 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 19 predicate places. [2021-10-28 08:34:48,113 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 72 transitions, 227 flow [2021-10-28 08:34:48,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 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 08:34:48,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:48,114 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, 1, 1, 1, 1] [2021-10-28 08:34:48,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:34:48,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1830008008, now seen corresponding path program 2 times [2021-10-28 08:34:48,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:48,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513746726] [2021-10-28 08:34:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:48,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:34:48,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:48,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513746726] [2021-10-28 08:34:48,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513746726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:48,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:48,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:34:48,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559641910] [2021-10-28 08:34:48,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:34:48,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:34:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:34:48,244 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 89 [2021-10-28 08:34:48,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 72 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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 08:34:48,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:48,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 89 [2021-10-28 08:34:48,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:48,347 INFO L129 PetriNetUnfolder]: 14/127 cut-off events. [2021-10-28 08:34:48,347 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-10-28 08:34:48,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 127 events. 14/127 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 267 event pairs, 6 based on Foata normal form. 1/127 useless extension candidates. Maximal degree in co-relation 262. Up to 30 conditions per place. [2021-10-28 08:34:48,349 INFO L132 encePairwiseOnDemand]: 84/89 looper letters, 26 selfloop transitions, 5 changer transitions 4/71 dead transitions. [2021-10-28 08:34:48,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 286 flow [2021-10-28 08:34:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:34:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 08:34:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2021-10-28 08:34:48,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.647191011235955 [2021-10-28 08:34:48,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 288 transitions. [2021-10-28 08:34:48,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 288 transitions. [2021-10-28 08:34:48,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:48,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 288 transitions. [2021-10-28 08:34:48,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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 08:34:48,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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 08:34:48,355 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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 08:34:48,355 INFO L186 Difference]: Start difference. First operand has 97 places, 72 transitions, 227 flow. Second operand 5 states and 288 transitions. [2021-10-28 08:34:48,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 286 flow [2021-10-28 08:34:48,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 250 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-10-28 08:34:48,360 INFO L242 Difference]: Finished difference. Result has 78 places, 65 transitions, 178 flow [2021-10-28 08:34:48,360 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=78, PETRI_TRANSITIONS=65} [2021-10-28 08:34:48,360 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2021-10-28 08:34:48,361 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 178 flow [2021-10-28 08:34:48,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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 08:34:48,361 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:48,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:48,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:34:48,362 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash 235655055, now seen corresponding path program 1 times [2021-10-28 08:34:48,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:48,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328060571] [2021-10-28 08:34:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:48,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:34:48,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:48,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328060571] [2021-10-28 08:34:48,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328060571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:48,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:48,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:34:48,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164079299] [2021-10-28 08:34:48,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:34:48,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:34:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:34:48,468 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 89 [2021-10-28 08:34:48,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 65 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 08:34:48,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:48,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 89 [2021-10-28 08:34:48,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:48,576 INFO L129 PetriNetUnfolder]: 12/130 cut-off events. [2021-10-28 08:34:48,576 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-10-28 08:34:48,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 130 events. 12/130 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 307 event pairs, 1 based on Foata normal form. 8/138 useless extension candidates. Maximal degree in co-relation 215. Up to 37 conditions per place. [2021-10-28 08:34:48,577 INFO L132 encePairwiseOnDemand]: 84/89 looper letters, 30 selfloop transitions, 5 changer transitions 3/74 dead transitions. [2021-10-28 08:34:48,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 74 transitions, 303 flow [2021-10-28 08:34:48,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:34:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 08:34:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 291 transitions. [2021-10-28 08:34:48,579 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6539325842696629 [2021-10-28 08:34:48,579 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 291 transitions. [2021-10-28 08:34:48,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 291 transitions. [2021-10-28 08:34:48,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:48,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 291 transitions. [2021-10-28 08:34:48,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 58.2) internal successors, (291), 5 states have internal predecessors, (291), 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 08:34:48,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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 08:34:48,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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 08:34:48,583 INFO L186 Difference]: Start difference. First operand has 78 places, 65 transitions, 178 flow. Second operand 5 states and 291 transitions. [2021-10-28 08:34:48,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 74 transitions, 303 flow [2021-10-28 08:34:48,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 279 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 08:34:48,587 INFO L242 Difference]: Finished difference. Result has 76 places, 65 transitions, 172 flow [2021-10-28 08:34:48,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2021-10-28 08:34:48,587 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, -2 predicate places. [2021-10-28 08:34:48,587 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 172 flow [2021-10-28 08:34:48,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 08:34:48,588 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:48,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:48,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:34:48,589 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:48,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1068287013, now seen corresponding path program 2 times [2021-10-28 08:34:48,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:48,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640620830] [2021-10-28 08:34:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:48,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:48,771 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 08:34:48,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:48,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640620830] [2021-10-28 08:34:48,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640620830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:48,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:48,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:34:48,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539680851] [2021-10-28 08:34:48,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:34:48,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:48,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:34:48,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:34:48,776 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2021-10-28 08:34:48,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 172 flow. Second operand has 8 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 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 08:34:48,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:48,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2021-10-28 08:34:48,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:48,984 INFO L129 PetriNetUnfolder]: 5/107 cut-off events. [2021-10-28 08:34:48,984 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-10-28 08:34:48,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 107 events. 5/107 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 0 based on Foata normal form. 4/111 useless extension candidates. Maximal degree in co-relation 135. Up to 17 conditions per place. [2021-10-28 08:34:48,985 INFO L132 encePairwiseOnDemand]: 79/89 looper letters, 27 selfloop transitions, 13 changer transitions 1/72 dead transitions. [2021-10-28 08:34:48,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 280 flow [2021-10-28 08:34:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:34:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 08:34:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 410 transitions. [2021-10-28 08:34:48,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5758426966292135 [2021-10-28 08:34:48,989 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 410 transitions. [2021-10-28 08:34:48,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 410 transitions. [2021-10-28 08:34:48,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:48,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 410 transitions. [2021-10-28 08:34:48,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 51.25) internal successors, (410), 8 states have internal predecessors, (410), 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 08:34:48,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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 08:34:48,993 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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 08:34:48,993 INFO L186 Difference]: Start difference. First operand has 76 places, 65 transitions, 172 flow. Second operand 8 states and 410 transitions. [2021-10-28 08:34:48,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 280 flow [2021-10-28 08:34:48,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 08:34:48,997 INFO L242 Difference]: Finished difference. Result has 81 places, 68 transitions, 214 flow [2021-10-28 08:34:48,997 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2021-10-28 08:34:48,997 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2021-10-28 08:34:48,998 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 214 flow [2021-10-28 08:34:48,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 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 08:34:48,998 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:48,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:48,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:34:48,999 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:49,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1416623551, now seen corresponding path program 3 times [2021-10-28 08:34:49,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:49,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194465572] [2021-10-28 08:34:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:49,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:34:49,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:49,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194465572] [2021-10-28 08:34:49,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194465572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:49,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:49,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 08:34:49,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173352799] [2021-10-28 08:34:49,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:34:49,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:49,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:34:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:34:49,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2021-10-28 08:34:49,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 214 flow. Second operand has 9 states, 9 states have (on average 49.55555555555556) internal successors, (446), 9 states have internal predecessors, (446), 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 08:34:49,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:49,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2021-10-28 08:34:49,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:49,492 INFO L129 PetriNetUnfolder]: 5/122 cut-off events. [2021-10-28 08:34:49,493 INFO L130 PetriNetUnfolder]: For 93/96 co-relation queries the response was YES. [2021-10-28 08:34:49,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 122 events. 5/122 cut-off events. For 93/96 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 246 event pairs, 0 based on Foata normal form. 7/129 useless extension candidates. Maximal degree in co-relation 202. Up to 18 conditions per place. [2021-10-28 08:34:49,494 INFO L132 encePairwiseOnDemand]: 81/89 looper letters, 30 selfloop transitions, 6 changer transitions 12/79 dead transitions. [2021-10-28 08:34:49,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 375 flow [2021-10-28 08:34:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:34:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 08:34:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 366 transitions. [2021-10-28 08:34:49,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5874799357945425 [2021-10-28 08:34:49,510 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 366 transitions. [2021-10-28 08:34:49,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 366 transitions. [2021-10-28 08:34:49,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:49,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 366 transitions. [2021-10-28 08:34:49,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 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 08:34:49,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 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 08:34:49,515 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 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 08:34:49,515 INFO L186 Difference]: Start difference. First operand has 81 places, 68 transitions, 214 flow. Second operand 7 states and 366 transitions. [2021-10-28 08:34:49,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 79 transitions, 375 flow [2021-10-28 08:34:49,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 370 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 08:34:49,519 INFO L242 Difference]: Finished difference. Result has 85 places, 66 transitions, 213 flow [2021-10-28 08:34:49,519 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=213, PETRI_PLACES=85, PETRI_TRANSITIONS=66} [2021-10-28 08:34:49,520 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2021-10-28 08:34:49,520 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 66 transitions, 213 flow [2021-10-28 08:34:49,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.55555555555556) internal successors, (446), 9 states have internal predecessors, (446), 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 08:34:49,520 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:34:49,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:34:49,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:34:49,521 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 08:34:49,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:34:49,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2048870843, now seen corresponding path program 4 times [2021-10-28 08:34:49,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:34:49,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577028707] [2021-10-28 08:34:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:34:49,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:34:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:34:49,764 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 08:34:49,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:34:49,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577028707] [2021-10-28 08:34:49,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577028707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:34:49,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:34:49,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 08:34:49,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983920107] [2021-10-28 08:34:49,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:34:49,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:34:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:34:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:34:49,769 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2021-10-28 08:34:49,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 66 transitions, 213 flow. Second operand has 9 states, 9 states have (on average 49.55555555555556) internal successors, (446), 9 states have internal predecessors, (446), 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 08:34:49,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:34:49,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2021-10-28 08:34:49,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:34:49,913 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-10-28 08:34:49,914 INFO L130 PetriNetUnfolder]: For 61/62 co-relation queries the response was YES. [2021-10-28 08:34:49,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 61 events. 1/61 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 5/66 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-10-28 08:34:49,914 INFO L132 encePairwiseOnDemand]: 84/89 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2021-10-28 08:34:49,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 56 transitions, 242 flow [2021-10-28 08:34:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:34:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 08:34:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-10-28 08:34:49,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5749063670411985 [2021-10-28 08:34:49,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-10-28 08:34:49,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-10-28 08:34:49,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:34:49,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-10-28 08:34:49,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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 08:34:49,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:49,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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 08:34:49,922 INFO L186 Difference]: Start difference. First operand has 85 places, 66 transitions, 213 flow. Second operand 6 states and 307 transitions. [2021-10-28 08:34:49,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 56 transitions, 242 flow [2021-10-28 08:34:49,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 56 transitions, 212 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-10-28 08:34:49,924 INFO L242 Difference]: Finished difference. Result has 70 places, 0 transitions, 0 flow [2021-10-28 08:34:49,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=70, PETRI_TRANSITIONS=0} [2021-10-28 08:34:49,925 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2021-10-28 08:34:49,925 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 0 transitions, 0 flow [2021-10-28 08:34:49,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.55555555555556) internal successors, (446), 9 states have internal predecessors, (446), 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 08:34:49,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:34:49,929 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:34:49,929 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 08:34:49,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:34:49,933 INFO L731 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1] [2021-10-28 08:34:49,936 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 08:34:49,936 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:34:49,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:34:49 BasicIcfg [2021-10-28 08:34:49,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:34:49,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:34:49,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:34:49,940 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:34:49,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:34:46" (3/4) ... [2021-10-28 08:34:49,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:34:49,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 08:34:49,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-28 08:34:49,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:34:49,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:34:49,957 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:34:49,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:34:49,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:34:49,999 INFO L168 Benchmark]: Toolchain (without parser) took 4958.66 ms. Allocated memory was 107.0 MB in the beginning and 178.3 MB in the end (delta: 71.3 MB). Free memory was 64.0 MB in the beginning and 103.6 MB in the end (delta: -39.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,000 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 81.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:34:50,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.51 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 72.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 70.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,001 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 107.0 MB. Free memory was 70.4 MB in the beginning and 68.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,002 INFO L168 Benchmark]: RCFGBuilder took 486.97 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 55.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,002 INFO L168 Benchmark]: TraceAbstraction took 3732.29 ms. Allocated memory was 107.0 MB in the beginning and 178.3 MB in the end (delta: 71.3 MB). Free memory was 55.1 MB in the beginning and 106.8 MB in the end (delta: -51.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,003 INFO L168 Benchmark]: Witness Printer took 58.33 ms. Allocated memory is still 178.3 MB. Free memory was 106.8 MB in the beginning and 103.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:34:50,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 81.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.51 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 72.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 70.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 107.0 MB. Free memory was 70.4 MB in the beginning and 68.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 486.97 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 55.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3732.29 ms. Allocated memory was 107.0 MB in the beginning and 178.3 MB in the end (delta: 71.3 MB). Free memory was 55.1 MB in the beginning and 106.8 MB in the end (delta: -51.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Witness Printer took 58.33 ms. Allocated memory is still 178.3 MB. Free memory was 106.8 MB in the beginning and 103.6 MB in the end (delta: 3.1 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 - 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, 107 locations, 3 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: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 222 SDslu, 81 SDs, 0 SdLazy, 598 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 17 SyntacticMatches, 9 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=2, InterpolantAutomatonStates: 52, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 454 NumberOfCodeBlocks, 454 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 3311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 08:34:50,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e68a4ec-6f14-478a-bc0e-c3afb78136bd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...