./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --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_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:37:57,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:37:57,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:37:57,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:37:57,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:37:57,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:37:57,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:37:57,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:37:57,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:37:57,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:37:57,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:37:57,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:37:57,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:37:57,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:37:57,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:37:57,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:37:57,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:37:57,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:37:57,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:37:57,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:37:57,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:37:57,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:37:57,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:37:57,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:37:57,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:37:57,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:37:57,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:37:57,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:37:57,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:37:57,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:37:57,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:37:57,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:37:57,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:37:57,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:37:57,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:37:57,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:37:57,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:37:57,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:37:57,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:37:57,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:37:57,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:37:57,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:37:57,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:37:57,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:37:57,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:37:57,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:37:57,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:37:57,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:37:57,774 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:37:57,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:37:57,775 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:37:57,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:37:57,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:37:57,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:37:57,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:37:57,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:37:57,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:37:57,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:37:57,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:37:57,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:37:57,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:37:57,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:37:57,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:37:57,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:37:57,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:37:57,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:37:57,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:37:57,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:37:57,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:37:57,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:37:57,780 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:37:57,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:37:57,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:37:57,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:37:57,781 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_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2021-10-28 23:37:58,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:37:58,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:37:58,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:37:58,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:37:58,121 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:37:58,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-10-28 23:37:58,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/data/d81354b97/7f2ffc957f9648349a5b4793693fbbbb/FLAGa8d63e080 [2021-10-28 23:37:58,848 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:37:58,848 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-10-28 23:37:58,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/data/d81354b97/7f2ffc957f9648349a5b4793693fbbbb/FLAGa8d63e080 [2021-10-28 23:37:59,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/data/d81354b97/7f2ffc957f9648349a5b4793693fbbbb [2021-10-28 23:37:59,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:37:59,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:37:59,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:37:59,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:37:59,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:37:59,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99a55d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59, skipping insertion in model container [2021-10-28 23:37:59,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:37:59,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:37:59,544 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_723bf854-c7c2-4766-9024-f33827058f55/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-10-28 23:37:59,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:37:59,582 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:37:59,648 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_723bf854-c7c2-4766-9024-f33827058f55/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-10-28 23:37:59,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:37:59,677 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:37:59,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59 WrapperNode [2021-10-28 23:37:59,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:37:59,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:37:59,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:37:59,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:37:59,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:37:59,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:37:59,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:37:59,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:37:59,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:37:59,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:37:59,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:37:59,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:37:59,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (1/1) ... [2021-10-28 23:37:59,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:37:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:37:59,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:37:59,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:37:59,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:37:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:37:59,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:37:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:37:59,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:37:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:37:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:37:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:37:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:37:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:37:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:37:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:37:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:37:59,986 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:38:02,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:38:02,221 INFO L299 CfgBuilder]: Removed 80 assume(true) statements. [2021-10-28 23:38:02,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:02 BoogieIcfgContainer [2021-10-28 23:38:02,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:38:02,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:38:02,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:38:02,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:38:02,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:37:59" (1/3) ... [2021-10-28 23:38:02,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e61bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:02, skipping insertion in model container [2021-10-28 23:38:02,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:59" (2/3) ... [2021-10-28 23:38:02,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e61bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:02, skipping insertion in model container [2021-10-28 23:38:02,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:02" (3/3) ... [2021-10-28 23:38:02,236 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2021-10-28 23:38:02,241 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:38:02,242 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:38:02,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:38:02,242 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:38:02,291 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,291 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,292 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,292 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,292 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,292 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,293 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,294 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,294 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,294 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,299 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,300 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,301 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,302 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,302 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,302 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,303 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,303 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,304 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,304 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,304 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,307 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,307 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,308 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,309 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,309 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,309 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,310 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,311 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,312 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,312 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,312 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,312 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,314 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,315 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,315 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,315 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,316 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,316 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,316 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,316 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,317 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,317 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,318 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,318 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,318 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,318 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,318 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,319 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,319 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,322 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,323 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,323 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,323 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,323 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,323 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,324 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,324 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,325 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,325 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,328 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,329 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,330 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,331 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,331 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,332 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,332 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,334 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,334 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,340 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,341 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,341 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,341 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,341 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,342 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,345 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,354 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,354 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,357 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,360 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,361 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,380 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,381 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:38:02,396 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 23:38:02,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:38:02,469 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:38:02,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 23:38:02,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 125 transitions, 274 flow [2021-10-28 23:38:02,535 INFO L129 PetriNetUnfolder]: 2/122 cut-off events. [2021-10-28 23:38:02,535 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:38:02,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 2/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-10-28 23:38:02,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 125 transitions, 274 flow [2021-10-28 23:38:02,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 112 transitions, 242 flow [2021-10-28 23:38:02,569 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-10-28 23:38:02,569 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:38:02,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:02,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:02,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1810803978, now seen corresponding path program 1 times [2021-10-28 23:38:02,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:02,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798838421] [2021-10-28 23:38:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:02,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:05,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:05,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798838421] [2021-10-28 23:38:05,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798838421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:05,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:05,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:05,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738191032] [2021-10-28 23:38:05,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:05,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:05,407 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:05,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:05,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:05,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:05,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:07,644 INFO L129 PetriNetUnfolder]: 3/173 cut-off events. [2021-10-28 23:38:07,644 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-10-28 23:38:07,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 173 events. 3/173 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 282 event pairs, 1 based on Foata normal form. 6/169 useless extension candidates. Maximal degree in co-relation 123. Up to 32 conditions per place. [2021-10-28 23:38:07,654 INFO L132 encePairwiseOnDemand]: 112/125 looper letters, 46 selfloop transitions, 2 changer transitions 14/132 dead transitions. [2021-10-28 23:38:07,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 132 transitions, 406 flow [2021-10-28 23:38:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:38:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:38:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2021-10-28 23:38:07,682 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6984615384615385 [2021-10-28 23:38:07,683 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1135 transitions. [2021-10-28 23:38:07,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1135 transitions. [2021-10-28 23:38:07,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:07,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1135 transitions. [2021-10-28 23:38:07,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.3076923076923) internal successors, (1135), 13 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:07,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:07,730 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:07,732 INFO L186 Difference]: Start difference. First operand has 120 places, 112 transitions, 242 flow. Second operand 13 states and 1135 transitions. [2021-10-28 23:38:07,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 132 transitions, 406 flow [2021-10-28 23:38:07,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 132 transitions, 394 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 23:38:07,744 INFO L242 Difference]: Finished difference. Result has 134 places, 109 transitions, 247 flow [2021-10-28 23:38:07,746 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=247, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2021-10-28 23:38:07,747 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2021-10-28 23:38:07,749 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 247 flow [2021-10-28 23:38:07,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:07,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:07,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:07,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:38:07,751 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1790351290, now seen corresponding path program 2 times [2021-10-28 23:38:07,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:07,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957842627] [2021-10-28 23:38:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:07,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:10,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:10,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957842627] [2021-10-28 23:38:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957842627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:10,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:10,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:10,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374462284] [2021-10-28 23:38:10,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:10,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:10,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:10,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:10,945 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:10,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 247 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:10,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:10,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:10,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:12,702 INFO L129 PetriNetUnfolder]: 2/169 cut-off events. [2021-10-28 23:38:12,703 INFO L130 PetriNetUnfolder]: For 26/36 co-relation queries the response was YES. [2021-10-28 23:38:12,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 169 events. 2/169 cut-off events. For 26/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 269 event pairs, 0 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 259. Up to 32 conditions per place. [2021-10-28 23:38:12,704 INFO L132 encePairwiseOnDemand]: 116/125 looper letters, 46 selfloop transitions, 2 changer transitions 10/128 dead transitions. [2021-10-28 23:38:12,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 435 flow [2021-10-28 23:38:12,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:38:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 877 transitions. [2021-10-28 23:38:12,719 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7016 [2021-10-28 23:38:12,719 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 877 transitions. [2021-10-28 23:38:12,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 877 transitions. [2021-10-28 23:38:12,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:12,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 877 transitions. [2021-10-28 23:38:12,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.7) internal successors, (877), 10 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:12,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:12,728 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:12,728 INFO L186 Difference]: Start difference. First operand has 134 places, 109 transitions, 247 flow. Second operand 10 states and 877 transitions. [2021-10-28 23:38:12,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 435 flow [2021-10-28 23:38:12,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 128 transitions, 398 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-10-28 23:38:12,738 INFO L242 Difference]: Finished difference. Result has 133 places, 109 transitions, 257 flow [2021-10-28 23:38:12,739 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=257, PETRI_PLACES=133, PETRI_TRANSITIONS=109} [2021-10-28 23:38:12,739 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 13 predicate places. [2021-10-28 23:38:12,740 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 109 transitions, 257 flow [2021-10-28 23:38:12,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:12,741 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:12,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:12,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:38:12,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash -303231242, now seen corresponding path program 3 times [2021-10-28 23:38:12,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:12,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865129724] [2021-10-28 23:38:12,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:12,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:14,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:14,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865129724] [2021-10-28 23:38:14,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865129724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:14,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:14,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:14,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961839525] [2021-10-28 23:38:14,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:14,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:14,018 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:14,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 109 transitions, 257 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:14,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:14,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:14,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:14,982 INFO L129 PetriNetUnfolder]: 1/156 cut-off events. [2021-10-28 23:38:14,983 INFO L130 PetriNetUnfolder]: For 45/51 co-relation queries the response was YES. [2021-10-28 23:38:14,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 156 events. 1/156 cut-off events. For 45/51 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 1 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 250. Up to 32 conditions per place. [2021-10-28 23:38:14,987 INFO L132 encePairwiseOnDemand]: 116/125 looper letters, 46 selfloop transitions, 3 changer transitions 8/127 dead transitions. [2021-10-28 23:38:14,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 127 transitions, 442 flow [2021-10-28 23:38:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:38:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 877 transitions. [2021-10-28 23:38:14,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7016 [2021-10-28 23:38:14,996 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 877 transitions. [2021-10-28 23:38:14,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 877 transitions. [2021-10-28 23:38:15,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:15,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 877 transitions. [2021-10-28 23:38:15,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.7) internal successors, (877), 10 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:15,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:15,013 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:15,013 INFO L186 Difference]: Start difference. First operand has 133 places, 109 transitions, 257 flow. Second operand 10 states and 877 transitions. [2021-10-28 23:38:15,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 127 transitions, 442 flow [2021-10-28 23:38:15,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 127 transitions, 394 flow, removed 22 selfloop flow, removed 9 redundant places. [2021-10-28 23:38:15,024 INFO L242 Difference]: Finished difference. Result has 135 places, 110 transitions, 268 flow [2021-10-28 23:38:15,025 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=268, PETRI_PLACES=135, PETRI_TRANSITIONS=110} [2021-10-28 23:38:15,026 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 15 predicate places. [2021-10-28 23:38:15,026 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 110 transitions, 268 flow [2021-10-28 23:38:15,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:15,027 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:15,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:15,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:38:15,027 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:15,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:15,028 INFO L85 PathProgramCache]: Analyzing trace with hash 342684368, now seen corresponding path program 4 times [2021-10-28 23:38:15,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:15,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183924529] [2021-10-28 23:38:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:15,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:16,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:16,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183924529] [2021-10-28 23:38:16,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183924529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:16,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:16,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:16,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337434305] [2021-10-28 23:38:16,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:16,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:16,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:16,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:16,144 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:16,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 110 transitions, 268 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:16,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:16,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:16,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:17,320 INFO L129 PetriNetUnfolder]: 1/142 cut-off events. [2021-10-28 23:38:17,321 INFO L130 PetriNetUnfolder]: For 40/48 co-relation queries the response was YES. [2021-10-28 23:38:17,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 142 events. 1/142 cut-off events. For 40/48 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 1 based on Foata normal form. 3/143 useless extension candidates. Maximal degree in co-relation 227. Up to 32 conditions per place. [2021-10-28 23:38:17,322 INFO L132 encePairwiseOnDemand]: 116/125 looper letters, 37 selfloop transitions, 1 changer transitions 11/119 dead transitions. [2021-10-28 23:38:17,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 119 transitions, 404 flow [2021-10-28 23:38:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:38:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 869 transitions. [2021-10-28 23:38:17,327 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6952 [2021-10-28 23:38:17,327 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 869 transitions. [2021-10-28 23:38:17,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 869 transitions. [2021-10-28 23:38:17,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:17,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 869 transitions. [2021-10-28 23:38:17,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.9) internal successors, (869), 10 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:17,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:17,336 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:17,336 INFO L186 Difference]: Start difference. First operand has 135 places, 110 transitions, 268 flow. Second operand 10 states and 869 transitions. [2021-10-28 23:38:17,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 119 transitions, 404 flow [2021-10-28 23:38:17,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 119 transitions, 380 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-10-28 23:38:17,342 INFO L242 Difference]: Finished difference. Result has 138 places, 108 transitions, 255 flow [2021-10-28 23:38:17,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=255, PETRI_PLACES=138, PETRI_TRANSITIONS=108} [2021-10-28 23:38:17,343 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 18 predicate places. [2021-10-28 23:38:17,343 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 108 transitions, 255 flow [2021-10-28 23:38:17,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:17,344 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:17,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:17,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:38:17,345 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:17,346 INFO L85 PathProgramCache]: Analyzing trace with hash 721442674, now seen corresponding path program 5 times [2021-10-28 23:38:17,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:17,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025579008] [2021-10-28 23:38:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:17,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:18,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:18,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025579008] [2021-10-28 23:38:18,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025579008] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:18,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:18,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:18,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120193471] [2021-10-28 23:38:18,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:18,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:18,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:18,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:18,889 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:18,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 108 transitions, 255 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:18,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:18,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:18,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:20,335 INFO L129 PetriNetUnfolder]: 0/132 cut-off events. [2021-10-28 23:38:20,338 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-10-28 23:38:20,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 132 events. 0/132 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-10-28 23:38:20,343 INFO L132 encePairwiseOnDemand]: 116/125 looper letters, 37 selfloop transitions, 1 changer transitions 9/117 dead transitions. [2021-10-28 23:38:20,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 117 transitions, 392 flow [2021-10-28 23:38:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:38:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2021-10-28 23:38:20,348 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6944 [2021-10-28 23:38:20,348 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2021-10-28 23:38:20,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2021-10-28 23:38:20,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:20,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2021-10-28 23:38:20,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:20,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:20,358 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:20,358 INFO L186 Difference]: Start difference. First operand has 138 places, 108 transitions, 255 flow. Second operand 10 states and 868 transitions. [2021-10-28 23:38:20,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 117 transitions, 392 flow [2021-10-28 23:38:20,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 117 transitions, 346 flow, removed 15 selfloop flow, removed 13 redundant places. [2021-10-28 23:38:20,364 INFO L242 Difference]: Finished difference. Result has 134 places, 108 transitions, 247 flow [2021-10-28 23:38:20,365 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=247, PETRI_PLACES=134, PETRI_TRANSITIONS=108} [2021-10-28 23:38:20,365 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2021-10-28 23:38:20,365 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 108 transitions, 247 flow [2021-10-28 23:38:20,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:20,366 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:38:20,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:20,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:38:20,367 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:38:20,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1151042682, now seen corresponding path program 6 times [2021-10-28 23:38:20,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:20,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411939675] [2021-10-28 23:38:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:20,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:22,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:22,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411939675] [2021-10-28 23:38:22,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411939675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:22,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:22,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:38:22,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246925240] [2021-10-28 23:38:22,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:22,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:22,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:22,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:22,096 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2021-10-28 23:38:22,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 108 transitions, 247 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:22,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:38:22,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2021-10-28 23:38:22,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:38:23,865 INFO L129 PetriNetUnfolder]: 0/109 cut-off events. [2021-10-28 23:38:23,865 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2021-10-28 23:38:23,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 109 events. 0/109 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-10-28 23:38:23,866 INFO L132 encePairwiseOnDemand]: 116/125 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2021-10-28 23:38:23,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 107 transitions, 323 flow [2021-10-28 23:38:23,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:38:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 859 transitions. [2021-10-28 23:38:23,869 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6872 [2021-10-28 23:38:23,869 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 859 transitions. [2021-10-28 23:38:23,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 859 transitions. [2021-10-28 23:38:23,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:38:23,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 859 transitions. [2021-10-28 23:38:23,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.9) internal successors, (859), 10 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:23,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:23,877 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:23,877 INFO L186 Difference]: Start difference. First operand has 134 places, 108 transitions, 247 flow. Second operand 10 states and 859 transitions. [2021-10-28 23:38:23,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 107 transitions, 323 flow [2021-10-28 23:38:23,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 107 transitions, 309 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-10-28 23:38:23,880 INFO L242 Difference]: Finished difference. Result has 127 places, 0 transitions, 0 flow [2021-10-28 23:38:23,880 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=127, PETRI_TRANSITIONS=0} [2021-10-28 23:38:23,880 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 7 predicate places. [2021-10-28 23:38:23,881 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 0 transitions, 0 flow [2021-10-28 23:38:23,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:23,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:38:23,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:38:23,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:38:23,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:38:23,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:38:23,893 INFO L731 BasicCegarLoop]: Path program histogram: [6] [2021-10-28 23:38:23,900 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:38:23,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:38:23,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:38:23 BasicIcfg [2021-10-28 23:38:23,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:38:23,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:38:23,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:38:23,906 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:38:23,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:02" (3/4) ... [2021-10-28 23:38:23,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:38:23,915 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:38:23,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:38:23,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:38:23,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 23:38:23,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:38:23,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:38:23,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:38:24,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:38:24,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:38:24,009 INFO L168 Benchmark]: Toolchain (without parser) took 24807.42 ms. Allocated memory was 127.9 MB in the beginning and 302.0 MB in the end (delta: 174.1 MB). Free memory was 92.1 MB in the beginning and 196.3 MB in the end (delta: -104.2 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,009 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 127.9 MB. Free memory was 98.2 MB in the beginning and 98.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:38:24,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.79 ms. Allocated memory is still 127.9 MB. Free memory was 91.9 MB in the beginning and 100.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.94 ms. Allocated memory is still 127.9 MB. Free memory was 100.2 MB in the beginning and 97.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,011 INFO L168 Benchmark]: Boogie Preprocessor took 61.52 ms. Allocated memory is still 127.9 MB. Free memory was 97.4 MB in the beginning and 95.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,011 INFO L168 Benchmark]: RCFGBuilder took 2377.71 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 95.4 MB in the beginning and 87.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,012 INFO L168 Benchmark]: TraceAbstraction took 21677.92 ms. Allocated memory was 174.1 MB in the beginning and 302.0 MB in the end (delta: 127.9 MB). Free memory was 87.6 MB in the beginning and 200.5 MB in the end (delta: -112.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,012 INFO L168 Benchmark]: Witness Printer took 101.46 ms. Allocated memory is still 302.0 MB. Free memory was 200.5 MB in the beginning and 196.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:24,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 127.9 MB. Free memory was 98.2 MB in the beginning and 98.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 476.79 ms. Allocated memory is still 127.9 MB. Free memory was 91.9 MB in the beginning and 100.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.94 ms. Allocated memory is still 127.9 MB. Free memory was 100.2 MB in the beginning and 97.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.52 ms. Allocated memory is still 127.9 MB. Free memory was 97.4 MB in the beginning and 95.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2377.71 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 95.4 MB in the beginning and 87.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21677.92 ms. Allocated memory was 174.1 MB in the beginning and 302.0 MB in the end (delta: 127.9 MB). Free memory was 87.6 MB in the beginning and 200.5 MB in the end (delta: -112.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 101.46 ms. Allocated memory is still 302.0 MB. Free memory was 200.5 MB in the beginning and 196.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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: 101]: 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 7 procedures, 139 locations, 4 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: 21.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 227 SDtfs, 232 SDslu, 927 SDs, 0 SdLazy, 665 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=3, InterpolantAutomatonStates: 63, 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, 2.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 8505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:38:24,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_723bf854-c7c2-4766-9024-f33827058f55/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...