/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:18:36,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:18:36,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:18:36,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:18:36,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:18:36,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:18:36,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:18:36,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:18:36,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:18:36,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:18:36,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:18:36,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:18:36,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:18:36,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:18:36,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:18:36,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:18:36,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:18:36,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:18:36,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:18:36,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:18:36,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:18:36,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:18:36,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:18:36,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:18:36,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:18:36,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:18:36,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:18:36,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:18:36,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:18:36,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:18:36,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:18:36,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:18:36,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:18:36,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:18:36,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:18:36,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:18:36,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:18:36,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:18:36,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:18:36,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:18:36,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:18:36,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:18:36,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:18:36,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:18:36,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:18:36,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:18:36,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:18:36,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:18:36,733 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:18:36,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:18:36,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:18:36,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:18:36,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:18:36,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:18:36,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:18:36,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:18:36,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:18:36,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:18:36,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:18:36,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:18:36,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:18:36,737 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:18:37,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:18:37,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:18:37,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:18:37,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:18:37,095 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:18:37,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2022-12-12 19:18:38,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:18:38,460 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:18:38,460 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2022-12-12 19:18:38,477 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649df656c/c5468837be6d4f6f9f07d1430d95cbb7/FLAG732bcb3f7 [2022-12-12 19:18:38,493 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649df656c/c5468837be6d4f6f9f07d1430d95cbb7 [2022-12-12 19:18:38,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:18:38,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:18:38,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:18:38,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:18:38,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:18:38,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b30de54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38, skipping insertion in model container [2022-12-12 19:18:38,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:18:38,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:18:38,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-12 19:18:38,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:18:38,734 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:18:38,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 19:18:38,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 19:18:38,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-12 19:18:38,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:18:38,800 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:18:38,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38 WrapperNode [2022-12-12 19:18:38,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:18:38,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:18:38,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:18:38,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:18:38,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,862 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-12-12 19:18:38,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:18:38,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:18:38,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:18:38,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:18:38,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,912 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:18:38,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:18:38,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:18:38,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:18:38,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (1/1) ... [2022-12-12 19:18:38,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:18:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:18:38,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:18:38,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:18:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:18:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 19:18:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 19:18:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 19:18:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 19:18:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 19:18:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 19:18:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:18:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:18:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:18:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 19:18:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 19:18:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:18:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:18:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:18:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:18:38,998 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:18:39,091 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:18:39,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:18:39,610 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:18:40,073 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:18:40,074 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:18:40,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:18:40 BoogieIcfgContainer [2022-12-12 19:18:40,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:18:40,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:18:40,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:18:40,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:18:40,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:18:38" (1/3) ... [2022-12-12 19:18:40,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc5061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:18:40, skipping insertion in model container [2022-12-12 19:18:40,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:18:38" (2/3) ... [2022-12-12 19:18:40,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc5061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:18:40, skipping insertion in model container [2022-12-12 19:18:40,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:18:40" (3/3) ... [2022-12-12 19:18:40,085 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-12-12 19:18:40,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:18:40,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:18:40,102 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:18:40,196 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 19:18:40,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 120 transitions, 264 flow [2022-12-12 19:18:40,298 INFO L130 PetriNetUnfolder]: 1/117 cut-off events. [2022-12-12 19:18:40,299 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:18:40,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 1/117 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-12 19:18:40,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 120 transitions, 264 flow [2022-12-12 19:18:40,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 107 transitions, 232 flow [2022-12-12 19:18:40,309 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:18:40,323 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 107 transitions, 232 flow [2022-12-12 19:18:40,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 107 transitions, 232 flow [2022-12-12 19:18:40,361 INFO L130 PetriNetUnfolder]: 1/107 cut-off events. [2022-12-12 19:18:40,361 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:18:40,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 1/107 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2022-12-12 19:18:40,364 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 107 transitions, 232 flow [2022-12-12 19:18:40,365 INFO L226 LiptonReduction]: Number of co-enabled transitions 270 [2022-12-12 19:18:50,262 INFO L241 LiptonReduction]: Total number of compositions: 91 [2022-12-12 19:18:50,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:18:50,279 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c581ee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:18:50,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 19:18:50,287 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-12 19:18:50,287 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:18:50,287 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:18:50,288 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:18:50,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:18:50,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:18:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1563368137, now seen corresponding path program 1 times [2022-12-12 19:18:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:18:50,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925991229] [2022-12-12 19:18:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:18:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:18:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:18:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:18:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:18:53,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925991229] [2022-12-12 19:18:53,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925991229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:18:53,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:18:53,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:18:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435442594] [2022-12-12 19:18:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:18:53,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:18:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:18:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:18:53,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:18:53,843 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:18:53,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:53,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:18:53,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:18:53,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:18:54,212 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-12-12 19:18:54,213 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-12 19:18:54,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 285 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2022-12-12 19:18:54,215 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-12-12 19:18:54,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-12-12 19:18:54,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:18:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:18:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-12 19:18:54,225 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-12 19:18:54,227 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2022-12-12 19:18:54,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 45 transitions, 228 flow [2022-12-12 19:18:54,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 38 transitions, 191 flow [2022-12-12 19:18:54,229 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 38 transitions, 191 flow [2022-12-12 19:18:54,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:54,230 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:18:54,230 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:18:54,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:18:54,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:18:54,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:18:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash 776608377, now seen corresponding path program 2 times [2022-12-12 19:18:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:18:54,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201656634] [2022-12-12 19:18:54,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:18:54,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:18:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:18:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:18:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:18:56,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201656634] [2022-12-12 19:18:56,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201656634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:18:56,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:18:56,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:18:56,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271668258] [2022-12-12 19:18:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:18:56,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:18:56,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:18:56,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:18:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:18:56,577 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:18:56,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 38 transitions, 191 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:56,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:18:56,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:18:56,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:18:56,869 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-12-12 19:18:56,869 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-12 19:18:56,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 116 events. 38/116 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 416 event pairs, 0 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 274. Up to 58 conditions per place. [2022-12-12 19:18:56,872 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 44 selfloop transitions, 7 changer transitions 16/67 dead transitions. [2022-12-12 19:18:56,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 67 transitions, 471 flow [2022-12-12 19:18:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:18:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:18:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 45 transitions. [2022-12-12 19:18:56,874 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46875 [2022-12-12 19:18:56,874 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-12 19:18:56,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 67 transitions, 471 flow [2022-12-12 19:18:56,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 51 transitions, 357 flow [2022-12-12 19:18:56,876 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 51 transitions, 357 flow [2022-12-12 19:18:56,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:56,876 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:18:56,876 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:18:56,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:18:56,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:18:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:18:56,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1079504893, now seen corresponding path program 3 times [2022-12-12 19:18:56,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:18:56,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400488368] [2022-12-12 19:18:56,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:18:56,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:18:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:18:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:18:58,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:18:58,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400488368] [2022-12-12 19:18:58,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400488368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:18:58,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:18:58,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:18:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143919842] [2022-12-12 19:18:58,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:18:58,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:18:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:18:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:18:58,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:18:58,807 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:18:58,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 51 transitions, 357 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:58,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:18:58,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:18:58,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:18:59,165 INFO L130 PetriNetUnfolder]: 27/85 cut-off events. [2022-12-12 19:18:59,165 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-12 19:18:59,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 85 events. 27/85 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 241 event pairs, 0 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 262. Up to 53 conditions per place. [2022-12-12 19:18:59,166 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 34 selfloop transitions, 6 changer transitions 10/50 dead transitions. [2022-12-12 19:18:59,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 451 flow [2022-12-12 19:18:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:18:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:18:59,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2022-12-12 19:18:59,169 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4479166666666667 [2022-12-12 19:18:59,170 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2022-12-12 19:18:59,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 50 transitions, 451 flow [2022-12-12 19:18:59,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 40 transitions, 359 flow [2022-12-12 19:18:59,173 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 359 flow [2022-12-12 19:18:59,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:18:59,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:18:59,173 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:18:59,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:18:59,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:18:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:18:59,174 INFO L85 PathProgramCache]: Analyzing trace with hash 135329339, now seen corresponding path program 4 times [2022-12-12 19:18:59,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:18:59,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517952353] [2022-12-12 19:18:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:18:59,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:18:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:19:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:19:01,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:19:01,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517952353] [2022-12-12 19:19:01,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517952353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:19:01,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:19:01,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:19:01,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676175509] [2022-12-12 19:19:01,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:19:01,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:19:01,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:19:01,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:19:01,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:19:01,157 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:19:01,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 359 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:01,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:19:01,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:19:01,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:19:01,421 INFO L130 PetriNetUnfolder]: 16/54 cut-off events. [2022-12-12 19:19:01,421 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-12 19:19:01,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 54 events. 16/54 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 204. Up to 32 conditions per place. [2022-12-12 19:19:01,422 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 20 selfloop transitions, 4 changer transitions 15/39 dead transitions. [2022-12-12 19:19:01,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 429 flow [2022-12-12 19:19:01,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 19:19:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 19:19:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-12-12 19:19:01,423 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-12 19:19:01,424 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2022-12-12 19:19:01,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 39 transitions, 429 flow [2022-12-12 19:19:01,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 24 transitions, 261 flow [2022-12-12 19:19:01,425 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 261 flow [2022-12-12 19:19:01,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:01,425 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:19:01,425 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:19:01,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 19:19:01,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:19:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:19:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash 557239869, now seen corresponding path program 5 times [2022-12-12 19:19:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:19:01,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517753644] [2022-12-12 19:19:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:19:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:19:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:19:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:19:02,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:19:02,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517753644] [2022-12-12 19:19:02,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517753644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:19:02,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:19:02,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:19:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302992529] [2022-12-12 19:19:02,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:19:02,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:19:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:19:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:19:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:19:02,964 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:19:02,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 261 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:02,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:19:02,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:19:02,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:19:03,182 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-12-12 19:19:03,183 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-12 19:19:03,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 40 events. 8/40 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2022-12-12 19:19:03,184 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 16 selfloop transitions, 3 changer transitions 13/32 dead transitions. [2022-12-12 19:19:03,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 32 transitions, 414 flow [2022-12-12 19:19:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:19:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:19:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2022-12-12 19:19:03,185 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2022-12-12 19:19:03,187 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2022-12-12 19:19:03,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 32 transitions, 414 flow [2022-12-12 19:19:03,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 19 transitions, 246 flow [2022-12-12 19:19:03,189 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 19 transitions, 246 flow [2022-12-12 19:19:03,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:03,189 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:19:03,189 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:19:03,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 19:19:03,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:19:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:19:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1596726021, now seen corresponding path program 6 times [2022-12-12 19:19:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:19:03,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821351511] [2022-12-12 19:19:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:19:03,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:19:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:19:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:19:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:19:05,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821351511] [2022-12-12 19:19:05,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821351511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:19:05,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:19:05,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:19:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422897734] [2022-12-12 19:19:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:19:05,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:19:05,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:19:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:19:05,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:19:05,702 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:19:05,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 19 transitions, 246 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:05,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:19:05,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:19:05,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:19:05,902 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 19:19:05,903 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:19:05,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 21 events. 3/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 102. Up to 11 conditions per place. [2022-12-12 19:19:05,903 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-12 19:19:05,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 18 transitions, 270 flow [2022-12-12 19:19:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:19:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:19:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-12-12 19:19:05,904 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.19791666666666666 [2022-12-12 19:19:05,905 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 21 predicate places. [2022-12-12 19:19:05,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 18 transitions, 270 flow [2022-12-12 19:19:05,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 19:19:05,905 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 19:19:05,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:19:05,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 19:19:05,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 19:19:05,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 19:19:05,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 19:19:05,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 19:19:05,908 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 19:19:05,911 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:19:05,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:19:05,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:19:05 BasicIcfg [2022-12-12 19:19:05,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:19:05,914 INFO L158 Benchmark]: Toolchain (without parser) took 27417.22ms. Allocated memory was 190.8MB in the beginning and 556.8MB in the end (delta: 366.0MB). Free memory was 157.7MB in the beginning and 440.6MB in the end (delta: -282.9MB). Peak memory consumption was 83.6MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,915 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 168.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:19:05,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.78ms. Allocated memory is still 190.8MB. Free memory was 157.2MB in the beginning and 145.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.16ms. Allocated memory is still 190.8MB. Free memory was 145.1MB in the beginning and 142.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,916 INFO L158 Benchmark]: Boogie Preprocessor took 52.21ms. Allocated memory is still 190.8MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,916 INFO L158 Benchmark]: RCFGBuilder took 1155.98ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 111.1MB in the end (delta: 28.8MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,916 INFO L158 Benchmark]: TraceAbstraction took 25836.09ms. Allocated memory was 190.8MB in the beginning and 556.8MB in the end (delta: 366.0MB). Free memory was 110.1MB in the beginning and 440.6MB in the end (delta: -330.6MB). Peak memory consumption was 35.4MB. Max. memory is 8.0GB. [2022-12-12 19:19:05,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 168.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 300.78ms. Allocated memory is still 190.8MB. Free memory was 157.2MB in the beginning and 145.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.16ms. Allocated memory is still 190.8MB. Free memory was 145.1MB in the beginning and 142.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.21ms. Allocated memory is still 190.8MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1155.98ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 111.1MB in the end (delta: 28.8MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * TraceAbstraction took 25836.09ms. Allocated memory was 190.8MB in the beginning and 556.8MB in the end (delta: 366.0MB). Free memory was 110.1MB in the beginning and 440.6MB in the end (delta: -330.6MB). Peak memory consumption was 35.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9s, 116 PlacesBefore, 26 PlacesAfterwards, 107 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 72 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 117, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 100]: 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, 135 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: 25.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=359occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 849 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2271 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! [2022-12-12 19:19:05,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...