/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 22:28:25,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 22:28:25,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 22:28:25,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 22:28:25,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 22:28:25,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 22:28:25,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 22:28:25,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 22:28:25,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 22:28:25,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 22:28:25,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 22:28:25,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 22:28:25,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 22:28:25,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 22:28:25,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 22:28:25,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 22:28:25,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 22:28:25,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 22:28:25,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 22:28:25,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 22:28:25,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 22:28:25,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 22:28:25,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 22:28:25,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 22:28:25,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 22:28:25,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 22:28:25,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 22:28:25,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 22:28:25,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 22:28:25,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 22:28:25,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 22:28:25,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 22:28:25,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 22:28:25,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 22:28:25,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 22:28:25,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 22:28:25,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 22:28:25,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 22:28:25,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 22:28:25,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 22:28:25,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 22:28:25,143 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-NoLbe.epf [2022-12-11 22:28:25,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 22:28:25,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 22:28:25,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 22:28:25,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 22:28:25,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 22:28:25,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 22:28:25,175 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 22:28:25,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 22:28:25,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 22:28:25,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 22:28:25,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 22:28:25,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 22:28:25,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 22:28:25,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 22:28:25,178 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 22:28:25,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 22:28:25,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 22:28:25,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 22:28:25,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 22:28:25,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 22:28:25,477 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 22:28:25,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-12-11 22:28:26,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 22:28:26,734 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 22:28:26,734 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-12-11 22:28:26,742 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0562e8cec/e801a71d3943450788f6bb858b9587bb/FLAGa54575888 [2022-12-11 22:28:26,752 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0562e8cec/e801a71d3943450788f6bb858b9587bb [2022-12-11 22:28:26,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 22:28:26,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 22:28:26,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 22:28:26,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 22:28:26,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 22:28:26,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:26,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6538b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26, skipping insertion in model container [2022-12-11 22:28:26,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:26,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 22:28:26,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 22:28:26,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,905 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-12-11 22:28:26,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 22:28:26,916 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 22:28:26,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:28:26,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:28:26,950 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-12-11 22:28:26,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 22:28:26,963 INFO L208 MainTranslator]: Completed translation [2022-12-11 22:28:26,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26 WrapperNode [2022-12-11 22:28:26,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 22:28:26,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 22:28:26,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 22:28:26,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 22:28:26,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:26,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,016 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-12-11 22:28:27,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 22:28:27,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 22:28:27,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 22:28:27,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 22:28:27,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,045 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 22:28:27,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 22:28:27,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 22:28:27,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 22:28:27,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (1/1) ... [2022-12-11 22:28:27,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 22:28:27,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:28:27,117 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) [2022-12-11 22:28:27,132 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 [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 22:28:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 22:28:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 22:28:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 22:28:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 22:28:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 22:28:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 22:28:27,148 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 22:28:27,252 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 22:28:27,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 22:28:27,496 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 22:28:27,688 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 22:28:27,688 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-11 22:28:27,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 10:28:27 BoogieIcfgContainer [2022-12-11 22:28:27,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 22:28:27,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 22:28:27,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 22:28:27,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 22:28:27,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 10:28:26" (1/3) ... [2022-12-11 22:28:27,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505c0f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 10:28:27, skipping insertion in model container [2022-12-11 22:28:27,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:28:26" (2/3) ... [2022-12-11 22:28:27,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505c0f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 10:28:27, skipping insertion in model container [2022-12-11 22:28:27,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 10:28:27" (3/3) ... [2022-12-11 22:28:27,696 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-12-11 22:28:27,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 22:28:27,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 22:28:27,716 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 22:28:27,796 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 22:28:27,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 206 transitions, 436 flow [2022-12-11 22:28:27,940 INFO L130 PetriNetUnfolder]: 18/203 cut-off events. [2022-12-11 22:28:27,940 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 22:28:27,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 203 events. 18/203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 122 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-12-11 22:28:27,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 206 transitions, 436 flow [2022-12-11 22:28:27,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 193 transitions, 404 flow [2022-12-11 22:28:27,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 22:28:27,981 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;@69582b7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 22:28:27,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 22:28:28,026 INFO L130 PetriNetUnfolder]: 18/192 cut-off events. [2022-12-11 22:28:28,026 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 22:28:28,026 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:28,027 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:28,027 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)] === [2022-12-11 22:28:28,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:28,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1824186022, now seen corresponding path program 1 times [2022-12-11 22:28:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316543204] [2022-12-11 22:28:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:28:28,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:28,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316543204] [2022-12-11 22:28:28,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316543204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:28,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:28,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 22:28:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538724622] [2022-12-11 22:28:28,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:28,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-11 22:28:28,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:28,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-11 22:28:28,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-11 22:28:28,359 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 206 [2022-12-11 22:28:28,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 193 transitions, 404 flow. Second operand has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 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) [2022-12-11 22:28:28,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:28,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 206 [2022-12-11 22:28:28,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:28,451 INFO L130 PetriNetUnfolder]: 71/384 cut-off events. [2022-12-11 22:28:28,452 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-11 22:28:28,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 384 events. 71/384 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1178 event pairs, 38 based on Foata normal form. 60/403 useless extension candidates. Maximal degree in co-relation 353. Up to 106 conditions per place. [2022-12-11 22:28:28,458 INFO L137 encePairwiseOnDemand]: 193/206 looper letters, 11 selfloop transitions, 0 changer transitions 6/180 dead transitions. [2022-12-11 22:28:28,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 180 transitions, 400 flow [2022-12-11 22:28:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-11 22:28:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-11 22:28:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 386 transitions. [2022-12-11 22:28:28,472 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9368932038834952 [2022-12-11 22:28:28,475 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 1 predicate places. [2022-12-11 22:28:28,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 180 transitions, 400 flow [2022-12-11 22:28:28,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 174 transitions, 388 flow [2022-12-11 22:28:28,479 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 174 transitions, 388 flow [2022-12-11 22:28:28,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 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) [2022-12-11 22:28:28,479 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:28,479 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:28,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 22:28:28,480 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)] === [2022-12-11 22:28:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash 19794773, now seen corresponding path program 1 times [2022-12-11 22:28:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:28,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840812325] [2022-12-11 22:28:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:28:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840812325] [2022-12-11 22:28:28,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840812325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:28,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:28,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 22:28:28,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542961181] [2022-12-11 22:28:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:28,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 22:28:28,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 22:28:28,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-11 22:28:28,832 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 206 [2022-12-11 22:28:28,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 174 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 159.66666666666666) internal successors, (958), 6 states have internal predecessors, (958), 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) [2022-12-11 22:28:28,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:28,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 206 [2022-12-11 22:28:28,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:29,043 INFO L130 PetriNetUnfolder]: 73/457 cut-off events. [2022-12-11 22:28:29,043 INFO L131 PetriNetUnfolder]: For 118/168 co-relation queries the response was YES. [2022-12-11 22:28:29,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 457 events. 73/457 cut-off events. For 118/168 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1429 event pairs, 38 based on Foata normal form. 11/429 useless extension candidates. Maximal degree in co-relation 448. Up to 118 conditions per place. [2022-12-11 22:28:29,046 INFO L137 encePairwiseOnDemand]: 194/206 looper letters, 33 selfloop transitions, 8 changer transitions 17/195 dead transitions. [2022-12-11 22:28:29,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 195 transitions, 563 flow [2022-12-11 22:28:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 22:28:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 22:28:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1456 transitions. [2022-12-11 22:28:29,050 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.785329018338727 [2022-12-11 22:28:29,051 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 3 predicate places. [2022-12-11 22:28:29,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 195 transitions, 563 flow [2022-12-11 22:28:29,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 178 transitions, 478 flow [2022-12-11 22:28:29,055 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 178 transitions, 478 flow [2022-12-11 22:28:29,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.66666666666666) internal successors, (958), 6 states have internal predecessors, (958), 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) [2022-12-11 22:28:29,056 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:29,056 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:29,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 22:28:29,056 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)] === [2022-12-11 22:28:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2120173275, now seen corresponding path program 1 times [2022-12-11 22:28:29,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:29,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335908497] [2022-12-11 22:28:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:28:29,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:29,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335908497] [2022-12-11 22:28:29,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335908497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:29,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:29,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 22:28:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909127061] [2022-12-11 22:28:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:29,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 22:28:29,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 22:28:29,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-11 22:28:29,300 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 206 [2022-12-11 22:28:29,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 178 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 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) [2022-12-11 22:28:29,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:29,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 206 [2022-12-11 22:28:29,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:29,438 INFO L130 PetriNetUnfolder]: 92/497 cut-off events. [2022-12-11 22:28:29,438 INFO L131 PetriNetUnfolder]: For 347/515 co-relation queries the response was YES. [2022-12-11 22:28:29,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 497 events. 92/497 cut-off events. For 347/515 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1812 event pairs, 50 based on Foata normal form. 13/461 useless extension candidates. Maximal degree in co-relation 543. Up to 160 conditions per place. [2022-12-11 22:28:29,440 INFO L137 encePairwiseOnDemand]: 197/206 looper letters, 39 selfloop transitions, 6 changer transitions 8/190 dead transitions. [2022-12-11 22:28:29,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 190 transitions, 658 flow [2022-12-11 22:28:29,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 22:28:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 22:28:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1136 transitions. [2022-12-11 22:28:29,443 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7877947295423023 [2022-12-11 22:28:29,444 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 7 predicate places. [2022-12-11 22:28:29,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 190 transitions, 658 flow [2022-12-11 22:28:29,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 182 transitions, 584 flow [2022-12-11 22:28:29,447 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 182 transitions, 584 flow [2022-12-11 22:28:29,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 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) [2022-12-11 22:28:29,447 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:29,448 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:29,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 22:28:29,448 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)] === [2022-12-11 22:28:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1112273625, now seen corresponding path program 1 times [2022-12-11 22:28:29,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:29,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344984594] [2022-12-11 22:28:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:29,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:29,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:29,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344984594] [2022-12-11 22:28:29,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344984594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:29,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:29,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 22:28:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143937473] [2022-12-11 22:28:29,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:29,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 22:28:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:29,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 22:28:29,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 22:28:29,735 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 206 [2022-12-11 22:28:29,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 182 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2022-12-11 22:28:29,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:29,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 206 [2022-12-11 22:28:29,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:29,800 INFO L130 PetriNetUnfolder]: 82/423 cut-off events. [2022-12-11 22:28:29,801 INFO L131 PetriNetUnfolder]: For 396/540 co-relation queries the response was YES. [2022-12-11 22:28:29,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 423 events. 82/423 cut-off events. For 396/540 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1284 event pairs, 17 based on Foata normal form. 6/397 useless extension candidates. Maximal degree in co-relation 731. Up to 138 conditions per place. [2022-12-11 22:28:29,803 INFO L137 encePairwiseOnDemand]: 203/206 looper letters, 19 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2022-12-11 22:28:29,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 188 transitions, 680 flow [2022-12-11 22:28:29,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 22:28:29,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 22:28:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2022-12-11 22:28:29,805 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8948220064724919 [2022-12-11 22:28:29,806 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 8 predicate places. [2022-12-11 22:28:29,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 188 transitions, 680 flow [2022-12-11 22:28:29,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 188 transitions, 680 flow [2022-12-11 22:28:29,809 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 188 transitions, 680 flow [2022-12-11 22:28:29,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2022-12-11 22:28:29,809 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:29,810 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:29,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 22:28:29,810 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)] === [2022-12-11 22:28:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1337162551, now seen corresponding path program 2 times [2022-12-11 22:28:29,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:29,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486894795] [2022-12-11 22:28:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:31,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:31,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486894795] [2022-12-11 22:28:31,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486894795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:31,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:31,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:31,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005462141] [2022-12-11 22:28:31,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:31,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:31,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:31,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:31,118 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:31,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 188 transitions, 680 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:31,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:31,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:31,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:32,036 INFO L130 PetriNetUnfolder]: 1281/2903 cut-off events. [2022-12-11 22:28:32,036 INFO L131 PetriNetUnfolder]: For 6903/7255 co-relation queries the response was YES. [2022-12-11 22:28:32,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8669 conditions, 2903 events. 1281/2903 cut-off events. For 6903/7255 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 20347 event pairs, 220 based on Foata normal form. 7/2659 useless extension candidates. Maximal degree in co-relation 7086. Up to 981 conditions per place. [2022-12-11 22:28:32,055 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 155 selfloop transitions, 41 changer transitions 5/326 dead transitions. [2022-12-11 22:28:32,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 326 transitions, 1999 flow [2022-12-11 22:28:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-12-11 22:28:32,059 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6718446601941748 [2022-12-11 22:28:32,059 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 27 predicate places. [2022-12-11 22:28:32,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 326 transitions, 1999 flow [2022-12-11 22:28:32,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 321 transitions, 1957 flow [2022-12-11 22:28:32,120 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 321 transitions, 1957 flow [2022-12-11 22:28:32,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:32,121 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:32,121 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:32,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 22:28:32,122 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)] === [2022-12-11 22:28:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:32,122 INFO L85 PathProgramCache]: Analyzing trace with hash -936154349, now seen corresponding path program 3 times [2022-12-11 22:28:32,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:32,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635232597] [2022-12-11 22:28:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:32,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635232597] [2022-12-11 22:28:32,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635232597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:32,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:32,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 22:28:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798676110] [2022-12-11 22:28:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:32,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 22:28:32,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 22:28:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 22:28:32,259 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 206 [2022-12-11 22:28:32,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 321 transitions, 1957 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2022-12-11 22:28:32,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:32,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 206 [2022-12-11 22:28:32,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:32,496 INFO L130 PetriNetUnfolder]: 909/2035 cut-off events. [2022-12-11 22:28:32,496 INFO L131 PetriNetUnfolder]: For 8068/8363 co-relation queries the response was YES. [2022-12-11 22:28:32,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6967 conditions, 2035 events. 909/2035 cut-off events. For 8068/8363 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 12970 event pairs, 326 based on Foata normal form. 23/1915 useless extension candidates. Maximal degree in co-relation 6256. Up to 981 conditions per place. [2022-12-11 22:28:32,508 INFO L137 encePairwiseOnDemand]: 200/206 looper letters, 78 selfloop transitions, 6 changer transitions 0/304 dead transitions. [2022-12-11 22:28:32,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 304 transitions, 2002 flow [2022-12-11 22:28:32,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 22:28:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 22:28:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-12-11 22:28:32,509 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8818770226537217 [2022-12-11 22:28:32,510 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 27 predicate places. [2022-12-11 22:28:32,510 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 304 transitions, 2002 flow [2022-12-11 22:28:32,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 304 transitions, 2002 flow [2022-12-11 22:28:32,518 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 304 transitions, 2002 flow [2022-12-11 22:28:32,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2022-12-11 22:28:32,518 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:32,518 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:32,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 22:28:32,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:32,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:32,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1511175239, now seen corresponding path program 4 times [2022-12-11 22:28:32,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:32,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447703993] [2022-12-11 22:28:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:32,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:33,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447703993] [2022-12-11 22:28:33,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447703993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:33,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:33,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31706540] [2022-12-11 22:28:33,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:33,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:33,504 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:33,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 304 transitions, 2002 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:33,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:33,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:33,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:34,312 INFO L130 PetriNetUnfolder]: 980/2341 cut-off events. [2022-12-11 22:28:34,312 INFO L131 PetriNetUnfolder]: For 10166/10870 co-relation queries the response was YES. [2022-12-11 22:28:34,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9386 conditions, 2341 events. 980/2341 cut-off events. For 10166/10870 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 16167 event pairs, 190 based on Foata normal form. 66/2243 useless extension candidates. Maximal degree in co-relation 6801. Up to 1182 conditions per place. [2022-12-11 22:28:34,328 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 168 selfloop transitions, 41 changer transitions 5/339 dead transitions. [2022-12-11 22:28:34,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 339 transitions, 2810 flow [2022-12-11 22:28:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:34,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2744 transitions. [2022-12-11 22:28:34,332 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6660194174757281 [2022-12-11 22:28:34,332 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 46 predicate places. [2022-12-11 22:28:34,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 339 transitions, 2810 flow [2022-12-11 22:28:34,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 334 transitions, 2754 flow [2022-12-11 22:28:34,345 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 334 transitions, 2754 flow [2022-12-11 22:28:34,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:34,346 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:34,347 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:34,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 22:28:34,347 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:34,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:34,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1782961981, now seen corresponding path program 5 times [2022-12-11 22:28:34,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:34,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303896199] [2022-12-11 22:28:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:34,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:35,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303896199] [2022-12-11 22:28:35,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303896199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:35,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:35,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083298372] [2022-12-11 22:28:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:35,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:35,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:35,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:35,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 334 transitions, 2754 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:35,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:35,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:35,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:36,033 INFO L130 PetriNetUnfolder]: 1021/2348 cut-off events. [2022-12-11 22:28:36,033 INFO L131 PetriNetUnfolder]: For 12007/12686 co-relation queries the response was YES. [2022-12-11 22:28:36,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11458 conditions, 2348 events. 1021/2348 cut-off events. For 12007/12686 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15901 event pairs, 321 based on Foata normal form. 74/2261 useless extension candidates. Maximal degree in co-relation 10323. Up to 1271 conditions per place. [2022-12-11 22:28:36,051 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 192 selfloop transitions, 39 changer transitions 5/361 dead transitions. [2022-12-11 22:28:36,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 361 transitions, 3539 flow [2022-12-11 22:28:36,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:36,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:36,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2746 transitions. [2022-12-11 22:28:36,057 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.666504854368932 [2022-12-11 22:28:36,058 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 63 predicate places. [2022-12-11 22:28:36,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 361 transitions, 3539 flow [2022-12-11 22:28:36,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 356 transitions, 3473 flow [2022-12-11 22:28:36,073 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 356 transitions, 3473 flow [2022-12-11 22:28:36,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:36,074 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:36,075 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:36,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 22:28:36,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:36,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:36,076 INFO L85 PathProgramCache]: Analyzing trace with hash -969941851, now seen corresponding path program 6 times [2022-12-11 22:28:36,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:36,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238552151] [2022-12-11 22:28:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:36,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:36,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:36,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238552151] [2022-12-11 22:28:36,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238552151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:36,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:36,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:36,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987457038] [2022-12-11 22:28:36,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:36,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:36,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:36,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:36,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:36,959 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:36,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 356 transitions, 3473 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:36,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:36,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:36,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:37,744 INFO L130 PetriNetUnfolder]: 1070/2507 cut-off events. [2022-12-11 22:28:37,744 INFO L131 PetriNetUnfolder]: For 16238/17836 co-relation queries the response was YES. [2022-12-11 22:28:37,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13868 conditions, 2507 events. 1070/2507 cut-off events. For 16238/17836 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 17675 event pairs, 325 based on Foata normal form. 88/2414 useless extension candidates. Maximal degree in co-relation 9616. Up to 1360 conditions per place. [2022-12-11 22:28:37,791 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 217 selfloop transitions, 43 changer transitions 5/390 dead transitions. [2022-12-11 22:28:37,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 390 transitions, 4528 flow [2022-12-11 22:28:37,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2746 transitions. [2022-12-11 22:28:37,797 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.666504854368932 [2022-12-11 22:28:37,797 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 80 predicate places. [2022-12-11 22:28:37,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 390 transitions, 4528 flow [2022-12-11 22:28:37,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 385 transitions, 4452 flow [2022-12-11 22:28:37,813 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 385 transitions, 4452 flow [2022-12-11 22:28:37,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:37,814 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:37,814 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:37,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 22:28:37,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash 836869183, now seen corresponding path program 7 times [2022-12-11 22:28:37,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:37,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691592768] [2022-12-11 22:28:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:38,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:38,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691592768] [2022-12-11 22:28:38,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691592768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:38,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:38,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:38,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724992697] [2022-12-11 22:28:38,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:38,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:38,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:38,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:38,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:38,591 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:38,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 385 transitions, 4452 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:38,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:38,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:38,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:39,402 INFO L130 PetriNetUnfolder]: 1084/2585 cut-off events. [2022-12-11 22:28:39,403 INFO L131 PetriNetUnfolder]: For 18037/19905 co-relation queries the response was YES. [2022-12-11 22:28:39,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15913 conditions, 2585 events. 1084/2585 cut-off events. For 18037/19905 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 18374 event pairs, 346 based on Foata normal form. 66/2477 useless extension candidates. Maximal degree in co-relation 11015. Up to 1430 conditions per place. [2022-12-11 22:28:39,428 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 234 selfloop transitions, 40 changer transitions 5/404 dead transitions. [2022-12-11 22:28:39,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 404 transitions, 5308 flow [2022-12-11 22:28:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:28:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:28:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2603 transitions. [2022-12-11 22:28:39,432 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6650485436893204 [2022-12-11 22:28:39,433 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 96 predicate places. [2022-12-11 22:28:39,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 404 transitions, 5308 flow [2022-12-11 22:28:39,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 399 transitions, 5222 flow [2022-12-11 22:28:39,453 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 399 transitions, 5222 flow [2022-12-11 22:28:39,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:39,454 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:39,454 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:39,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 22:28:39,454 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1499585841, now seen corresponding path program 8 times [2022-12-11 22:28:39,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:39,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602720877] [2022-12-11 22:28:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:39,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:40,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:40,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:40,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602720877] [2022-12-11 22:28:40,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602720877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:40,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:40,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:40,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269322157] [2022-12-11 22:28:40,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:40,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:40,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:40,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:40,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:40,276 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:40,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 399 transitions, 5222 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:40,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:40,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:40,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:40,979 INFO L130 PetriNetUnfolder]: 1152/2838 cut-off events. [2022-12-11 22:28:40,979 INFO L131 PetriNetUnfolder]: For 24186/25625 co-relation queries the response was YES. [2022-12-11 22:28:40,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19052 conditions, 2838 events. 1152/2838 cut-off events. For 24186/25625 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 21352 event pairs, 209 based on Foata normal form. 40/2660 useless extension candidates. Maximal degree in co-relation 12935. Up to 1558 conditions per place. [2022-12-11 22:28:40,998 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 277 selfloop transitions, 46 changer transitions 5/453 dead transitions. [2022-12-11 22:28:40,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 453 transitions, 6813 flow [2022-12-11 22:28:40,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2476 transitions. [2022-12-11 22:28:41,000 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6677454153182308 [2022-12-11 22:28:41,001 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 111 predicate places. [2022-12-11 22:28:41,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 296 places, 453 transitions, 6813 flow [2022-12-11 22:28:41,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 448 transitions, 6717 flow [2022-12-11 22:28:41,017 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 448 transitions, 6717 flow [2022-12-11 22:28:41,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:41,018 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:41,018 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:41,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 22:28:41,019 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:41,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash -122121655, now seen corresponding path program 9 times [2022-12-11 22:28:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:41,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169768312] [2022-12-11 22:28:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:41,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:41,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:41,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169768312] [2022-12-11 22:28:41,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169768312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:41,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:41,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538441318] [2022-12-11 22:28:41,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:41,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:41,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:41,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:41,786 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:41,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 448 transitions, 6717 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:41,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:41,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:41,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:42,559 INFO L130 PetriNetUnfolder]: 1199/2982 cut-off events. [2022-12-11 22:28:42,560 INFO L131 PetriNetUnfolder]: For 29369/31240 co-relation queries the response was YES. [2022-12-11 22:28:42,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21984 conditions, 2982 events. 1199/2982 cut-off events. For 29369/31240 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 22895 event pairs, 203 based on Foata normal form. 29/2781 useless extension candidates. Maximal degree in co-relation 15120. Up to 1653 conditions per place. [2022-12-11 22:28:42,585 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 312 selfloop transitions, 55 changer transitions 5/497 dead transitions. [2022-12-11 22:28:42,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 497 transitions, 8404 flow [2022-12-11 22:28:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2480 transitions. [2022-12-11 22:28:42,588 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.668824163969795 [2022-12-11 22:28:42,588 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 126 predicate places. [2022-12-11 22:28:42,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 497 transitions, 8404 flow [2022-12-11 22:28:42,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 492 transitions, 8298 flow [2022-12-11 22:28:42,609 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 492 transitions, 8298 flow [2022-12-11 22:28:42,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:42,610 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:42,610 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:42,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 22:28:42,611 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:42,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:42,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1597281927, now seen corresponding path program 10 times [2022-12-11 22:28:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:42,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560301311] [2022-12-11 22:28:42,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:43,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:43,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560301311] [2022-12-11 22:28:43,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560301311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:43,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:43,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:43,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463578490] [2022-12-11 22:28:43,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:43,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:43,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:43,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:43,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:43,289 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:43,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 492 transitions, 8298 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:43,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:43,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:43,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:44,029 INFO L130 PetriNetUnfolder]: 1208/3031 cut-off events. [2022-12-11 22:28:44,030 INFO L131 PetriNetUnfolder]: For 34265/36793 co-relation queries the response was YES. [2022-12-11 22:28:44,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24247 conditions, 3031 events. 1208/3031 cut-off events. For 34265/36793 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 23552 event pairs, 215 based on Foata normal form. 57/2853 useless extension candidates. Maximal degree in co-relation 16796. Up to 1731 conditions per place. [2022-12-11 22:28:44,051 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 330 selfloop transitions, 50 changer transitions 5/510 dead transitions. [2022-12-11 22:28:44,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 510 transitions, 9438 flow [2022-12-11 22:28:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2022-12-11 22:28:44,054 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6631607335490831 [2022-12-11 22:28:44,054 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 141 predicate places. [2022-12-11 22:28:44,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 510 transitions, 9438 flow [2022-12-11 22:28:44,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 505 transitions, 9322 flow [2022-12-11 22:28:44,073 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 505 transitions, 9322 flow [2022-12-11 22:28:44,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:44,074 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:44,074 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:44,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 22:28:44,074 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:44,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2088036395, now seen corresponding path program 11 times [2022-12-11 22:28:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:44,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545164174] [2022-12-11 22:28:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:44,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:44,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545164174] [2022-12-11 22:28:44,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545164174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:44,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:44,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117943882] [2022-12-11 22:28:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:44,796 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:44,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 505 transitions, 9322 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:44,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:44,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:44,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:45,549 INFO L130 PetriNetUnfolder]: 1250/3088 cut-off events. [2022-12-11 22:28:45,550 INFO L131 PetriNetUnfolder]: For 39687/43283 co-relation queries the response was YES. [2022-12-11 22:28:45,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27281 conditions, 3088 events. 1250/3088 cut-off events. For 39687/43283 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 23845 event pairs, 334 based on Foata normal form. 40/2892 useless extension candidates. Maximal degree in co-relation 17836. Up to 1816 conditions per place. [2022-12-11 22:28:45,576 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 347 selfloop transitions, 55 changer transitions 5/532 dead transitions. [2022-12-11 22:28:45,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 532 transitions, 10773 flow [2022-12-11 22:28:45,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:45,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2022-12-11 22:28:45,579 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6669363538295577 [2022-12-11 22:28:45,579 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 156 predicate places. [2022-12-11 22:28:45,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 532 transitions, 10773 flow [2022-12-11 22:28:45,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 527 transitions, 10647 flow [2022-12-11 22:28:45,600 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 527 transitions, 10647 flow [2022-12-11 22:28:45,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:45,601 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:45,601 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:45,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 22:28:45,601 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1304979101, now seen corresponding path program 12 times [2022-12-11 22:28:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:45,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414904472] [2022-12-11 22:28:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:45,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:46,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:46,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414904472] [2022-12-11 22:28:46,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414904472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:46,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:46,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:46,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076607799] [2022-12-11 22:28:46,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:46,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:46,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:46,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:46,383 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:46,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 527 transitions, 10647 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:46,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:46,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:46,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:47,456 INFO L130 PetriNetUnfolder]: 1398/3496 cut-off events. [2022-12-11 22:28:47,457 INFO L131 PetriNetUnfolder]: For 50767/54927 co-relation queries the response was YES. [2022-12-11 22:28:47,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32957 conditions, 3496 events. 1398/3496 cut-off events. For 50767/54927 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 28146 event pairs, 342 based on Foata normal form. 47/3305 useless extension candidates. Maximal degree in co-relation 21028. Up to 2026 conditions per place. [2022-12-11 22:28:47,488 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 388 selfloop transitions, 60 changer transitions 5/578 dead transitions. [2022-12-11 22:28:47,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 578 transitions, 12902 flow [2022-12-11 22:28:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2750 transitions. [2022-12-11 22:28:47,492 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6674757281553398 [2022-12-11 22:28:47,492 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 173 predicate places. [2022-12-11 22:28:47,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 358 places, 578 transitions, 12902 flow [2022-12-11 22:28:47,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 356 places, 573 transitions, 12766 flow [2022-12-11 22:28:47,517 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 573 transitions, 12766 flow [2022-12-11 22:28:47,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:47,518 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:47,518 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:47,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-11 22:28:47,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash -683097089, now seen corresponding path program 13 times [2022-12-11 22:28:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:47,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914790968] [2022-12-11 22:28:47,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:47,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:48,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:48,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914790968] [2022-12-11 22:28:48,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914790968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:48,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:48,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:48,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848936466] [2022-12-11 22:28:48,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:48,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:48,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:48,262 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:48,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 573 transitions, 12766 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:48,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:48,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:48,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:49,338 INFO L130 PetriNetUnfolder]: 1475/3735 cut-off events. [2022-12-11 22:28:49,338 INFO L131 PetriNetUnfolder]: For 62546/65388 co-relation queries the response was YES. [2022-12-11 22:28:49,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37321 conditions, 3735 events. 1475/3735 cut-off events. For 62546/65388 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 30853 event pairs, 277 based on Foata normal form. 52/3520 useless extension candidates. Maximal degree in co-relation 23526. Up to 2136 conditions per place. [2022-12-11 22:28:49,372 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 415 selfloop transitions, 64 changer transitions 5/609 dead transitions. [2022-12-11 22:28:49,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 609 transitions, 14747 flow [2022-12-11 22:28:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2745 transitions. [2022-12-11 22:28:49,375 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6662621359223301 [2022-12-11 22:28:49,376 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 190 predicate places. [2022-12-11 22:28:49,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 609 transitions, 14747 flow [2022-12-11 22:28:49,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 604 transitions, 14601 flow [2022-12-11 22:28:49,407 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 604 transitions, 14601 flow [2022-12-11 22:28:49,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:49,408 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:49,408 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-11 22:28:49,409 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 748891831, now seen corresponding path program 14 times [2022-12-11 22:28:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:49,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278257439] [2022-12-11 22:28:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:50,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:50,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278257439] [2022-12-11 22:28:50,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278257439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:50,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:50,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:50,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580039645] [2022-12-11 22:28:50,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:50,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:50,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:50,209 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:50,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 604 transitions, 14601 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:50,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:50,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:50,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:51,333 INFO L130 PetriNetUnfolder]: 1525/3916 cut-off events. [2022-12-11 22:28:51,333 INFO L131 PetriNetUnfolder]: For 76119/79618 co-relation queries the response was YES. [2022-12-11 22:28:51,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41334 conditions, 3916 events. 1525/3916 cut-off events. For 76119/79618 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 33424 event pairs, 186 based on Foata normal form. 72/3706 useless extension candidates. Maximal degree in co-relation 37668. Up to 2210 conditions per place. [2022-12-11 22:28:51,368 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 440 selfloop transitions, 63 changer transitions 5/633 dead transitions. [2022-12-11 22:28:51,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 633 transitions, 16471 flow [2022-12-11 22:28:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:51,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:51,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2749 transitions. [2022-12-11 22:28:51,370 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6672330097087379 [2022-12-11 22:28:51,371 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 207 predicate places. [2022-12-11 22:28:51,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 633 transitions, 16471 flow [2022-12-11 22:28:51,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 628 transitions, 16315 flow [2022-12-11 22:28:51,400 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 628 transitions, 16315 flow [2022-12-11 22:28:51,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:51,401 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:51,402 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:51,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-11 22:28:51,402 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:51,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1757505609, now seen corresponding path program 15 times [2022-12-11 22:28:51,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:51,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831663069] [2022-12-11 22:28:51,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:51,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:52,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:52,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831663069] [2022-12-11 22:28:52,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831663069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:52,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:52,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:52,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242919833] [2022-12-11 22:28:52,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:52,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:52,156 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:52,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 628 transitions, 16315 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:52,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:52,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:52,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:53,328 INFO L130 PetriNetUnfolder]: 1574/4033 cut-off events. [2022-12-11 22:28:53,328 INFO L131 PetriNetUnfolder]: For 87393/91306 co-relation queries the response was YES. [2022-12-11 22:28:53,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45356 conditions, 4033 events. 1574/4033 cut-off events. For 87393/91306 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 34606 event pairs, 207 based on Foata normal form. 86/3826 useless extension candidates. Maximal degree in co-relation 41313. Up to 2294 conditions per place. [2022-12-11 22:28:53,365 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 465 selfloop transitions, 67 changer transitions 5/662 dead transitions. [2022-12-11 22:28:53,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 662 transitions, 18526 flow [2022-12-11 22:28:53,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 22:28:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 22:28:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2745 transitions. [2022-12-11 22:28:53,369 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6662621359223301 [2022-12-11 22:28:53,369 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 224 predicate places. [2022-12-11 22:28:53,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 662 transitions, 18526 flow [2022-12-11 22:28:53,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 407 places, 657 transitions, 18360 flow [2022-12-11 22:28:53,403 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 657 transitions, 18360 flow [2022-12-11 22:28:53,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:53,404 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:53,404 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:53,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-11 22:28:53,404 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:53,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2079009909, now seen corresponding path program 16 times [2022-12-11 22:28:53,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:53,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144222326] [2022-12-11 22:28:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:54,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:54,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144222326] [2022-12-11 22:28:54,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144222326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:54,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:54,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209577786] [2022-12-11 22:28:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:54,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:54,059 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:54,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 657 transitions, 18360 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:54,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:54,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:54,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:55,140 INFO L130 PetriNetUnfolder]: 1600/4094 cut-off events. [2022-12-11 22:28:55,140 INFO L131 PetriNetUnfolder]: For 98802/103564 co-relation queries the response was YES. [2022-12-11 22:28:55,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48788 conditions, 4094 events. 1600/4094 cut-off events. For 98802/103564 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 35078 event pairs, 264 based on Foata normal form. 76/3883 useless extension candidates. Maximal degree in co-relation 30440. Up to 2315 conditions per place. [2022-12-11 22:28:55,180 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 485 selfloop transitions, 67 changer transitions 5/682 dead transitions. [2022-12-11 22:28:55,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 682 transitions, 20303 flow [2022-12-11 22:28:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:28:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:28:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2608 transitions. [2022-12-11 22:28:55,183 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6663260091977516 [2022-12-11 22:28:55,184 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 240 predicate places. [2022-12-11 22:28:55,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 682 transitions, 20303 flow [2022-12-11 22:28:55,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 677 transitions, 20127 flow [2022-12-11 22:28:55,219 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 677 transitions, 20127 flow [2022-12-11 22:28:55,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:55,220 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:55,220 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:55,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-11 22:28:55,220 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:55,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2132105813, now seen corresponding path program 17 times [2022-12-11 22:28:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:55,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111754416] [2022-12-11 22:28:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:55,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:55,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:55,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111754416] [2022-12-11 22:28:55,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111754416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:55,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:55,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:55,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295962225] [2022-12-11 22:28:55,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:55,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:55,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:55,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:55,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:55,917 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:55,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 677 transitions, 20127 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:55,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:55,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:55,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:56,981 INFO L130 PetriNetUnfolder]: 1606/4110 cut-off events. [2022-12-11 22:28:56,981 INFO L131 PetriNetUnfolder]: For 109749/115079 co-relation queries the response was YES. [2022-12-11 22:28:56,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51770 conditions, 4110 events. 1606/4110 cut-off events. For 109749/115079 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 35134 event pairs, 277 based on Foata normal form. 59/3872 useless extension candidates. Maximal degree in co-relation 32338. Up to 2328 conditions per place. [2022-12-11 22:28:57,018 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 502 selfloop transitions, 58 changer transitions 5/690 dead transitions. [2022-12-11 22:28:57,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 690 transitions, 21726 flow [2022-12-11 22:28:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2022-12-11 22:28:57,036 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6637001078748651 [2022-12-11 22:28:57,037 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 255 predicate places. [2022-12-11 22:28:57,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 690 transitions, 21726 flow [2022-12-11 22:28:57,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 685 transitions, 21540 flow [2022-12-11 22:28:57,088 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 685 transitions, 21540 flow [2022-12-11 22:28:57,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:57,104 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:57,104 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:57,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-11 22:28:57,104 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:57,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:57,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1169748171, now seen corresponding path program 18 times [2022-12-11 22:28:57,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:57,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418281730] [2022-12-11 22:28:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:57,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:57,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418281730] [2022-12-11 22:28:57,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418281730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:57,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:57,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766296178] [2022-12-11 22:28:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:57,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:57,828 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:57,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 685 transitions, 21540 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:57,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:57,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:57,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:28:58,990 INFO L130 PetriNetUnfolder]: 1657/4260 cut-off events. [2022-12-11 22:28:58,990 INFO L131 PetriNetUnfolder]: For 126504/131685 co-relation queries the response was YES. [2022-12-11 22:28:59,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56356 conditions, 4260 events. 1657/4260 cut-off events. For 126504/131685 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 37217 event pairs, 228 based on Foata normal form. 81/4026 useless extension candidates. Maximal degree in co-relation 35023. Up to 2402 conditions per place. [2022-12-11 22:28:59,033 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 520 selfloop transitions, 64 changer transitions 5/714 dead transitions. [2022-12-11 22:28:59,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 714 transitions, 23804 flow [2022-12-11 22:28:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:28:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:28:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2022-12-11 22:28:59,036 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6674757281553398 [2022-12-11 22:28:59,036 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 270 predicate places. [2022-12-11 22:28:59,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 455 places, 714 transitions, 23804 flow [2022-12-11 22:28:59,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 709 transitions, 23608 flow [2022-12-11 22:28:59,076 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 709 transitions, 23608 flow [2022-12-11 22:28:59,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:59,077 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:28:59,077 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:28:59,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-11 22:28:59,077 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:28:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:28:59,078 INFO L85 PathProgramCache]: Analyzing trace with hash -166534997, now seen corresponding path program 19 times [2022-12-11 22:28:59,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:28:59,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048282991] [2022-12-11 22:28:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:28:59,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:28:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:28:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:28:59,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:28:59,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048282991] [2022-12-11 22:28:59,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048282991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:28:59,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:28:59,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:28:59,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502090260] [2022-12-11 22:28:59,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:28:59,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:28:59,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:28:59,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:28:59,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:28:59,770 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:28:59,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 709 transitions, 23608 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:28:59,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:28:59,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:28:59,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:01,074 INFO L130 PetriNetUnfolder]: 1668/4315 cut-off events. [2022-12-11 22:29:01,075 INFO L131 PetriNetUnfolder]: For 141084/146857 co-relation queries the response was YES. [2022-12-11 22:29:01,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59438 conditions, 4315 events. 1668/4315 cut-off events. For 141084/146857 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 37824 event pairs, 225 based on Foata normal form. 86/4086 useless extension candidates. Maximal degree in co-relation 54397. Up to 2402 conditions per place. [2022-12-11 22:29:01,121 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 526 selfloop transitions, 67 changer transitions 5/723 dead transitions. [2022-12-11 22:29:01,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 723 transitions, 25376 flow [2022-12-11 22:29:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:01,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2022-12-11 22:29:01,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6655879180151025 [2022-12-11 22:29:01,142 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 285 predicate places. [2022-12-11 22:29:01,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 723 transitions, 25376 flow [2022-12-11 22:29:01,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 718 transitions, 25170 flow [2022-12-11 22:29:01,184 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 718 transitions, 25170 flow [2022-12-11 22:29:01,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:01,185 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:01,185 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:01,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-11 22:29:01,185 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:01,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:01,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1258519453, now seen corresponding path program 20 times [2022-12-11 22:29:01,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:01,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350890309] [2022-12-11 22:29:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:01,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:01,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:01,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350890309] [2022-12-11 22:29:01,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350890309] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:01,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:01,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:01,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57200761] [2022-12-11 22:29:01,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:01,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:01,952 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:01,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 718 transitions, 25170 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:01,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:01,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:01,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:03,056 INFO L130 PetriNetUnfolder]: 1668/4258 cut-off events. [2022-12-11 22:29:03,056 INFO L131 PetriNetUnfolder]: For 152317/158989 co-relation queries the response was YES. [2022-12-11 22:29:03,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62073 conditions, 4258 events. 1668/4258 cut-off events. For 152317/158989 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 36756 event pairs, 305 based on Foata normal form. 61/4009 useless extension candidates. Maximal degree in co-relation 38985. Up to 2396 conditions per place. [2022-12-11 22:29:03,098 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 530 selfloop transitions, 64 changer transitions 5/724 dead transitions. [2022-12-11 22:29:03,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 724 transitions, 26643 flow [2022-12-11 22:29:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:03,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2022-12-11 22:29:03,101 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6639697950377562 [2022-12-11 22:29:03,101 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 300 predicate places. [2022-12-11 22:29:03,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 485 places, 724 transitions, 26643 flow [2022-12-11 22:29:03,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 483 places, 719 transitions, 26427 flow [2022-12-11 22:29:03,140 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 719 transitions, 26427 flow [2022-12-11 22:29:03,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:03,140 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:03,140 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:03,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-11 22:29:03,141 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1268416585, now seen corresponding path program 21 times [2022-12-11 22:29:03,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:03,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836695422] [2022-12-11 22:29:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:04,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836695422] [2022-12-11 22:29:04,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836695422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:04,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:04,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:04,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86902780] [2022-12-11 22:29:04,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:04,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:04,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:04,011 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:04,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 719 transitions, 26427 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:04,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:04,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:04,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:05,317 INFO L130 PetriNetUnfolder]: 1668/4226 cut-off events. [2022-12-11 22:29:05,317 INFO L131 PetriNetUnfolder]: For 159529/166285 co-relation queries the response was YES. [2022-12-11 22:29:05,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64721 conditions, 4226 events. 1668/4226 cut-off events. For 159529/166285 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 36458 event pairs, 317 based on Foata normal form. 64/3988 useless extension candidates. Maximal degree in co-relation 40760. Up to 2390 conditions per place. [2022-12-11 22:29:05,442 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 532 selfloop transitions, 65 changer transitions 5/727 dead transitions. [2022-12-11 22:29:05,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 727 transitions, 28001 flow [2022-12-11 22:29:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2022-12-11 22:29:05,444 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6650485436893204 [2022-12-11 22:29:05,445 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 315 predicate places. [2022-12-11 22:29:05,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 500 places, 727 transitions, 28001 flow [2022-12-11 22:29:05,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 722 transitions, 27775 flow [2022-12-11 22:29:05,488 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 722 transitions, 27775 flow [2022-12-11 22:29:05,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:05,489 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:05,489 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:05,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-11 22:29:05,489 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:05,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:05,490 INFO L85 PathProgramCache]: Analyzing trace with hash -112085717, now seen corresponding path program 22 times [2022-12-11 22:29:05,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:05,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071236263] [2022-12-11 22:29:05,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:05,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:06,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:06,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071236263] [2022-12-11 22:29:06,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071236263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:06,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:06,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:06,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992206315] [2022-12-11 22:29:06,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:06,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:06,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:06,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:06,185 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:06,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 722 transitions, 27775 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:06,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:06,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:06,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:07,425 INFO L130 PetriNetUnfolder]: 1676/4271 cut-off events. [2022-12-11 22:29:07,425 INFO L131 PetriNetUnfolder]: For 176842/183781 co-relation queries the response was YES. [2022-12-11 22:29:07,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67808 conditions, 4271 events. 1676/4271 cut-off events. For 176842/183781 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 37288 event pairs, 293 based on Foata normal form. 65/4036 useless extension candidates. Maximal degree in co-relation 42720. Up to 2400 conditions per place. [2022-12-11 22:29:07,470 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 537 selfloop transitions, 68 changer transitions 5/735 dead transitions. [2022-12-11 22:29:07,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 735 transitions, 29630 flow [2022-12-11 22:29:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2022-12-11 22:29:07,473 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6645091693635383 [2022-12-11 22:29:07,473 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 330 predicate places. [2022-12-11 22:29:07,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 515 places, 735 transitions, 29630 flow [2022-12-11 22:29:07,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 730 transitions, 29394 flow [2022-12-11 22:29:07,518 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 730 transitions, 29394 flow [2022-12-11 22:29:07,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:07,527 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:07,527 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:07,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-11 22:29:07,527 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1770409657, now seen corresponding path program 23 times [2022-12-11 22:29:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:07,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004701446] [2022-12-11 22:29:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:07,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:08,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004701446] [2022-12-11 22:29:08,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004701446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:08,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:08,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:08,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499275152] [2022-12-11 22:29:08,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:08,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:08,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:08,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:08,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:08,268 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:08,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 730 transitions, 29394 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:08,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:08,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:08,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:09,673 INFO L130 PetriNetUnfolder]: 1724/4367 cut-off events. [2022-12-11 22:29:09,673 INFO L131 PetriNetUnfolder]: For 192010/198753 co-relation queries the response was YES. [2022-12-11 22:29:09,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72855 conditions, 4367 events. 1724/4367 cut-off events. For 192010/198753 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 38231 event pairs, 342 based on Foata normal form. 63/4125 useless extension candidates. Maximal degree in co-relation 63724. Up to 2490 conditions per place. [2022-12-11 22:29:09,721 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 556 selfloop transitions, 79 changer transitions 5/765 dead transitions. [2022-12-11 22:29:09,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 765 transitions, 32334 flow [2022-12-11 22:29:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2607 transitions. [2022-12-11 22:29:09,723 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6660705160960654 [2022-12-11 22:29:09,724 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 346 predicate places. [2022-12-11 22:29:09,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 531 places, 765 transitions, 32334 flow [2022-12-11 22:29:09,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 529 places, 760 transitions, 32088 flow [2022-12-11 22:29:09,779 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 760 transitions, 32088 flow [2022-12-11 22:29:09,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:09,780 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:09,780 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:09,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-11 22:29:09,781 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:09,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1535113773, now seen corresponding path program 24 times [2022-12-11 22:29:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:09,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141661013] [2022-12-11 22:29:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:10,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:10,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141661013] [2022-12-11 22:29:10,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141661013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:10,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:10,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:10,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818936511] [2022-12-11 22:29:10,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:10,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:10,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:10,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:10,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:10,478 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:10,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 760 transitions, 32088 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:10,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:10,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:10,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:11,822 INFO L130 PetriNetUnfolder]: 1733/4427 cut-off events. [2022-12-11 22:29:11,822 INFO L131 PetriNetUnfolder]: For 212970/221549 co-relation queries the response was YES. [2022-12-11 22:29:11,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76326 conditions, 4427 events. 1733/4427 cut-off events. For 212970/221549 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 38956 event pairs, 320 based on Foata normal form. 77/4188 useless extension candidates. Maximal degree in co-relation 47460. Up to 2505 conditions per place. [2022-12-11 22:29:11,874 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 581 selfloop transitions, 67 changer transitions 5/778 dead transitions. [2022-12-11 22:29:11,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 778 transitions, 34268 flow [2022-12-11 22:29:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-12-11 22:29:11,876 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6634304207119741 [2022-12-11 22:29:11,877 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 361 predicate places. [2022-12-11 22:29:11,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 546 places, 778 transitions, 34268 flow [2022-12-11 22:29:11,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 544 places, 773 transitions, 34012 flow [2022-12-11 22:29:11,931 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 773 transitions, 34012 flow [2022-12-11 22:29:11,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:11,932 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:11,932 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:11,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-11 22:29:11,932 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:11,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:11,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1432123871, now seen corresponding path program 25 times [2022-12-11 22:29:11,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:11,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833069426] [2022-12-11 22:29:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:11,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:12,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:12,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833069426] [2022-12-11 22:29:12,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833069426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:12,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:12,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:12,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357492605] [2022-12-11 22:29:12,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:12,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:12,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:12,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:12,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:12,717 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:12,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 773 transitions, 34012 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:12,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:12,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:12,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:14,160 INFO L130 PetriNetUnfolder]: 1775/4644 cut-off events. [2022-12-11 22:29:14,160 INFO L131 PetriNetUnfolder]: For 248597/258403 co-relation queries the response was YES. [2022-12-11 22:29:14,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81543 conditions, 4644 events. 1775/4644 cut-off events. For 248597/258403 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 42002 event pairs, 214 based on Foata normal form. 63/4360 useless extension candidates. Maximal degree in co-relation 50110. Up to 2585 conditions per place. [2022-12-11 22:29:14,215 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 598 selfloop transitions, 72 changer transitions 5/800 dead transitions. [2022-12-11 22:29:14,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 800 transitions, 36755 flow [2022-12-11 22:29:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2022-12-11 22:29:14,218 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6672060409924487 [2022-12-11 22:29:14,222 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 376 predicate places. [2022-12-11 22:29:14,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 561 places, 800 transitions, 36755 flow [2022-12-11 22:29:14,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 559 places, 795 transitions, 36489 flow [2022-12-11 22:29:14,396 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 795 transitions, 36489 flow [2022-12-11 22:29:14,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:14,397 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:14,397 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:14,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-11 22:29:14,397 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:14,398 INFO L85 PathProgramCache]: Analyzing trace with hash -57864889, now seen corresponding path program 26 times [2022-12-11 22:29:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:14,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356182367] [2022-12-11 22:29:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:15,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:15,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356182367] [2022-12-11 22:29:15,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356182367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:15,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:15,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:15,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557884666] [2022-12-11 22:29:15,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:15,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:15,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:15,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:15,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:15,124 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:15,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 795 transitions, 36489 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:15,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:15,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:15,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:16,906 INFO L130 PetriNetUnfolder]: 1852/4744 cut-off events. [2022-12-11 22:29:16,906 INFO L131 PetriNetUnfolder]: For 260181/272658 co-relation queries the response was YES. [2022-12-11 22:29:16,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88089 conditions, 4744 events. 1852/4744 cut-off events. For 260181/272658 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 42861 event pairs, 351 based on Foata normal form. 73/4498 useless extension candidates. Maximal degree in co-relation 60161. Up to 2695 conditions per place. [2022-12-11 22:29:16,961 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 624 selfloop transitions, 77 changer transitions 5/831 dead transitions. [2022-12-11 22:29:16,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 831 transitions, 39850 flow [2022-12-11 22:29:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2607 transitions. [2022-12-11 22:29:16,963 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6660705160960654 [2022-12-11 22:29:16,963 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 392 predicate places. [2022-12-11 22:29:16,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 577 places, 831 transitions, 39850 flow [2022-12-11 22:29:17,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 575 places, 826 transitions, 39574 flow [2022-12-11 22:29:17,020 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 826 transitions, 39574 flow [2022-12-11 22:29:17,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:17,020 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:17,020 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:17,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-11 22:29:17,021 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:17,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:17,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1660391029, now seen corresponding path program 27 times [2022-12-11 22:29:17,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:17,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560017176] [2022-12-11 22:29:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:17,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:17,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:17,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560017176] [2022-12-11 22:29:17,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560017176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:17,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:17,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:17,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639847010] [2022-12-11 22:29:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:17,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:17,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:17,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:17,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:17,709 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:17,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 826 transitions, 39574 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:17,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:17,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:17,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:19,267 INFO L130 PetriNetUnfolder]: 1911/4873 cut-off events. [2022-12-11 22:29:19,267 INFO L131 PetriNetUnfolder]: For 302372/316518 co-relation queries the response was YES. [2022-12-11 22:29:19,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94200 conditions, 4873 events. 1911/4873 cut-off events. For 302372/316518 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 44119 event pairs, 353 based on Foata normal form. 64/4582 useless extension candidates. Maximal degree in co-relation 56644. Up to 2796 conditions per place. [2022-12-11 22:29:19,420 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 649 selfloop transitions, 77 changer transitions 5/856 dead transitions. [2022-12-11 22:29:19,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 856 transitions, 42753 flow [2022-12-11 22:29:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2607 transitions. [2022-12-11 22:29:19,422 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6660705160960654 [2022-12-11 22:29:19,422 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 408 predicate places. [2022-12-11 22:29:19,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 593 places, 856 transitions, 42753 flow [2022-12-11 22:29:19,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 591 places, 851 transitions, 42467 flow [2022-12-11 22:29:19,482 INFO L495 AbstractCegarLoop]: Abstraction has has 591 places, 851 transitions, 42467 flow [2022-12-11 22:29:19,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:19,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:19,483 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:19,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-11 22:29:19,483 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:19,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1331550333, now seen corresponding path program 28 times [2022-12-11 22:29:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:19,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355324690] [2022-12-11 22:29:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:20,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:20,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355324690] [2022-12-11 22:29:20,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355324690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:20,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:20,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:20,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645557106] [2022-12-11 22:29:20,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:20,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:20,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:20,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:20,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:20,227 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:20,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 851 transitions, 42467 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:20,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:20,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:20,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:21,843 INFO L130 PetriNetUnfolder]: 1910/4895 cut-off events. [2022-12-11 22:29:21,843 INFO L131 PetriNetUnfolder]: For 317047/328065 co-relation queries the response was YES. [2022-12-11 22:29:21,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97284 conditions, 4895 events. 1910/4895 cut-off events. For 317047/328065 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 44609 event pairs, 312 based on Foata normal form. 65/4610 useless extension candidates. Maximal degree in co-relation 58639. Up to 2790 conditions per place. [2022-12-11 22:29:21,910 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 651 selfloop transitions, 76 changer transitions 5/857 dead transitions. [2022-12-11 22:29:21,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 857 transitions, 44302 flow [2022-12-11 22:29:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2022-12-11 22:29:21,912 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6645091693635383 [2022-12-11 22:29:21,913 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 423 predicate places. [2022-12-11 22:29:21,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 608 places, 857 transitions, 44302 flow [2022-12-11 22:29:21,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 606 places, 852 transitions, 44006 flow [2022-12-11 22:29:21,978 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 852 transitions, 44006 flow [2022-12-11 22:29:21,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:21,979 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:21,979 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:21,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-11 22:29:21,979 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash -435540549, now seen corresponding path program 29 times [2022-12-11 22:29:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:21,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225337249] [2022-12-11 22:29:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:22,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:22,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225337249] [2022-12-11 22:29:22,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225337249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:22,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:22,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:22,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436985985] [2022-12-11 22:29:22,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:22,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:22,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:22,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:22,753 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:22,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 852 transitions, 44006 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:22,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:22,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:22,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:24,560 INFO L130 PetriNetUnfolder]: 1960/5074 cut-off events. [2022-12-11 22:29:24,560 INFO L131 PetriNetUnfolder]: For 358747/370859 co-relation queries the response was YES. [2022-12-11 22:29:24,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103204 conditions, 5074 events. 1960/5074 cut-off events. For 358747/370859 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 47100 event pairs, 231 based on Foata normal form. 88/4788 useless extension candidates. Maximal degree in co-relation 94947. Up to 2874 conditions per place. [2022-12-11 22:29:24,625 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 669 selfloop transitions, 82 changer transitions 5/881 dead transitions. [2022-12-11 22:29:24,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 881 transitions, 47291 flow [2022-12-11 22:29:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2605 transitions. [2022-12-11 22:29:24,627 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6655595298926928 [2022-12-11 22:29:24,628 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 439 predicate places. [2022-12-11 22:29:24,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 624 places, 881 transitions, 47291 flow [2022-12-11 22:29:24,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 622 places, 876 transitions, 46985 flow [2022-12-11 22:29:24,693 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 876 transitions, 46985 flow [2022-12-11 22:29:24,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:24,700 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:24,701 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:24,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-11 22:29:24,701 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1658497443, now seen corresponding path program 30 times [2022-12-11 22:29:24,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:24,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463419332] [2022-12-11 22:29:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:25,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:25,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:25,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463419332] [2022-12-11 22:29:25,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463419332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:25,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:25,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:25,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071942680] [2022-12-11 22:29:25,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:25,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:25,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:25,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:25,418 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:25,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 876 transitions, 46985 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:25,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:25,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:25,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:27,447 INFO L130 PetriNetUnfolder]: 2010/5328 cut-off events. [2022-12-11 22:29:27,447 INFO L131 PetriNetUnfolder]: For 400980/414172 co-relation queries the response was YES. [2022-12-11 22:29:27,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109598 conditions, 5328 events. 2010/5328 cut-off events. For 400980/414172 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 50089 event pairs, 227 based on Foata normal form. 73/5009 useless extension candidates. Maximal degree in co-relation 65200. Up to 2948 conditions per place. [2022-12-11 22:29:27,517 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 699 selfloop transitions, 76 changer transitions 5/905 dead transitions. [2022-12-11 22:29:27,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 905 transitions, 50327 flow [2022-12-11 22:29:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2022-12-11 22:29:27,519 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6670924885028104 [2022-12-11 22:29:27,519 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 455 predicate places. [2022-12-11 22:29:27,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 640 places, 905 transitions, 50327 flow [2022-12-11 22:29:27,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 638 places, 900 transitions, 50011 flow [2022-12-11 22:29:27,593 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 900 transitions, 50011 flow [2022-12-11 22:29:27,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:27,593 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:27,593 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:27,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-11 22:29:27,594 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:27,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:27,594 INFO L85 PathProgramCache]: Analyzing trace with hash -896771307, now seen corresponding path program 31 times [2022-12-11 22:29:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:27,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98716622] [2022-12-11 22:29:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:28,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:28,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98716622] [2022-12-11 22:29:28,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98716622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:28,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:28,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4346490] [2022-12-11 22:29:28,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:28,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:28,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:28,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:28,223 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:28,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 900 transitions, 50011 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:28,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:28,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:28,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:30,240 INFO L130 PetriNetUnfolder]: 2060/5443 cut-off events. [2022-12-11 22:29:30,240 INFO L131 PetriNetUnfolder]: For 440919/455112 co-relation queries the response was YES. [2022-12-11 22:29:30,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116037 conditions, 5443 events. 2060/5443 cut-off events. For 440919/455112 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 51442 event pairs, 218 based on Foata normal form. 78/5120 useless extension candidates. Maximal degree in co-relation 68797. Up to 3022 conditions per place. [2022-12-11 22:29:30,312 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 725 selfloop transitions, 74 changer transitions 5/929 dead transitions. [2022-12-11 22:29:30,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 929 transitions, 53459 flow [2022-12-11 22:29:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:30,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2476 transitions. [2022-12-11 22:29:30,314 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6677454153182308 [2022-12-11 22:29:30,314 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 470 predicate places. [2022-12-11 22:29:30,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 655 places, 929 transitions, 53459 flow [2022-12-11 22:29:30,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 653 places, 924 transitions, 53133 flow [2022-12-11 22:29:30,387 INFO L495 AbstractCegarLoop]: Abstraction has has 653 places, 924 transitions, 53133 flow [2022-12-11 22:29:30,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:30,387 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:30,387 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-11 22:29:30,388 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 451477463, now seen corresponding path program 32 times [2022-12-11 22:29:30,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:30,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591863914] [2022-12-11 22:29:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591863914] [2022-12-11 22:29:31,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591863914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:31,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:31,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843858796] [2022-12-11 22:29:31,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:31,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:31,110 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:31,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 924 transitions, 53133 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:31,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:31,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:31,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:33,488 INFO L130 PetriNetUnfolder]: 2109/5514 cut-off events. [2022-12-11 22:29:33,488 INFO L131 PetriNetUnfolder]: For 466144/480910 co-relation queries the response was YES. [2022-12-11 22:29:33,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122369 conditions, 5514 events. 2109/5514 cut-off events. For 466144/480910 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 52151 event pairs, 280 based on Foata normal form. 87/5209 useless extension candidates. Maximal degree in co-relation 71883. Up to 3106 conditions per place. [2022-12-11 22:29:33,570 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 749 selfloop transitions, 79 changer transitions 5/958 dead transitions. [2022-12-11 22:29:33,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 958 transitions, 57092 flow [2022-12-11 22:29:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:33,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2607 transitions. [2022-12-11 22:29:33,573 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6660705160960654 [2022-12-11 22:29:33,573 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 486 predicate places. [2022-12-11 22:29:33,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 671 places, 958 transitions, 57092 flow [2022-12-11 22:29:33,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 953 transitions, 56756 flow [2022-12-11 22:29:33,655 INFO L495 AbstractCegarLoop]: Abstraction has has 669 places, 953 transitions, 56756 flow [2022-12-11 22:29:33,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:33,656 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:33,656 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:33,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-11 22:29:33,656 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1350897529, now seen corresponding path program 33 times [2022-12-11 22:29:33,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:33,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24752903] [2022-12-11 22:29:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:33,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:34,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:34,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24752903] [2022-12-11 22:29:34,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24752903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:34,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:34,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:34,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041120701] [2022-12-11 22:29:34,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:34,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:34,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:34,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:34,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:34,454 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:34,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 953 transitions, 56756 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:34,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:34,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:34,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:36,568 INFO L130 PetriNetUnfolder]: 2135/5609 cut-off events. [2022-12-11 22:29:36,569 INFO L131 PetriNetUnfolder]: For 505456/520912 co-relation queries the response was YES. [2022-12-11 22:29:36,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127528 conditions, 5609 events. 2135/5609 cut-off events. For 505456/520912 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 53554 event pairs, 229 based on Foata normal form. 99/5295 useless extension candidates. Maximal degree in co-relation 75363. Up to 3127 conditions per place. [2022-12-11 22:29:36,646 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 769 selfloop transitions, 79 changer transitions 5/978 dead transitions. [2022-12-11 22:29:36,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 978 transitions, 60141 flow [2022-12-11 22:29:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:36,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2022-12-11 22:29:36,648 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6661272923408845 [2022-12-11 22:29:36,657 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 501 predicate places. [2022-12-11 22:29:36,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 686 places, 978 transitions, 60141 flow [2022-12-11 22:29:36,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 684 places, 973 transitions, 59795 flow [2022-12-11 22:29:36,737 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 973 transitions, 59795 flow [2022-12-11 22:29:36,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:36,737 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:36,738 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:36,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-11 22:29:36,738 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:36,738 INFO L85 PathProgramCache]: Analyzing trace with hash 369879921, now seen corresponding path program 34 times [2022-12-11 22:29:36,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:36,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529621567] [2022-12-11 22:29:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:36,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:37,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529621567] [2022-12-11 22:29:37,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529621567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:37,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:37,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185002448] [2022-12-11 22:29:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:37,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:37,341 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:37,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 973 transitions, 59795 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:37,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:37,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:37,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:39,915 INFO L130 PetriNetUnfolder]: 2141/5626 cut-off events. [2022-12-11 22:29:39,915 INFO L131 PetriNetUnfolder]: For 536243/552551 co-relation queries the response was YES. [2022-12-11 22:29:39,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131260 conditions, 5626 events. 2141/5626 cut-off events. For 536243/552551 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 53474 event pairs, 253 based on Foata normal form. 86/5292 useless extension candidates. Maximal degree in co-relation 77875. Up to 3124 conditions per place. [2022-12-11 22:29:39,996 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 774 selfloop transitions, 82 changer transitions 5/986 dead transitions. [2022-12-11 22:29:39,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 986 transitions, 62435 flow [2022-12-11 22:29:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2469 transitions. [2022-12-11 22:29:39,999 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6658576051779935 [2022-12-11 22:29:39,999 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 516 predicate places. [2022-12-11 22:29:39,999 INFO L82 GeneralOperation]: Start removeDead. Operand has 701 places, 986 transitions, 62435 flow [2022-12-11 22:29:40,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 699 places, 981 transitions, 62079 flow [2022-12-11 22:29:40,250 INFO L495 AbstractCegarLoop]: Abstraction has has 699 places, 981 transitions, 62079 flow [2022-12-11 22:29:40,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:40,250 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:40,250 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:40,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-11 22:29:40,251 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash -219360457, now seen corresponding path program 35 times [2022-12-11 22:29:40,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:40,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969909659] [2022-12-11 22:29:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:40,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:40,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:40,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969909659] [2022-12-11 22:29:40,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969909659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:40,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:40,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:40,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16514120] [2022-12-11 22:29:40,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:40,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:40,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:40,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:40,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:40,940 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:40,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 981 transitions, 62079 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:40,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:40,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:40,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:43,370 INFO L130 PetriNetUnfolder]: 2147/5627 cut-off events. [2022-12-11 22:29:43,370 INFO L131 PetriNetUnfolder]: For 567266/583928 co-relation queries the response was YES. [2022-12-11 22:29:43,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135428 conditions, 5627 events. 2147/5627 cut-off events. For 567266/583928 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 53487 event pairs, 294 based on Foata normal form. 78/5295 useless extension candidates. Maximal degree in co-relation 80362. Up to 3136 conditions per place. [2022-12-11 22:29:43,461 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 787 selfloop transitions, 77 changer transitions 5/994 dead transitions. [2022-12-11 22:29:43,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 716 places, 994 transitions, 64754 flow [2022-12-11 22:29:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2022-12-11 22:29:43,463 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6639697950377562 [2022-12-11 22:29:43,463 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 531 predicate places. [2022-12-11 22:29:43,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 716 places, 994 transitions, 64754 flow [2022-12-11 22:29:43,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 714 places, 989 transitions, 64388 flow [2022-12-11 22:29:43,557 INFO L495 AbstractCegarLoop]: Abstraction has has 714 places, 989 transitions, 64388 flow [2022-12-11 22:29:43,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:43,557 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:43,557 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:43,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-11 22:29:43,557 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:43,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1827775557, now seen corresponding path program 36 times [2022-12-11 22:29:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988170401] [2022-12-11 22:29:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:44,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:44,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988170401] [2022-12-11 22:29:44,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988170401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:44,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:44,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:44,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113025218] [2022-12-11 22:29:44,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:44,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:44,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:44,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:44,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:44,344 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:44,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 714 places, 989 transitions, 64388 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:44,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:44,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:44,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:46,754 INFO L130 PetriNetUnfolder]: 2147/5612 cut-off events. [2022-12-11 22:29:46,754 INFO L131 PetriNetUnfolder]: For 604353/622623 co-relation queries the response was YES. [2022-12-11 22:29:46,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138836 conditions, 5612 events. 2147/5612 cut-off events. For 604353/622623 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 53425 event pairs, 246 based on Foata normal form. 87/5276 useless extension candidates. Maximal degree in co-relation 82563. Up to 3130 conditions per place. [2022-12-11 22:29:46,845 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 782 selfloop transitions, 83 changer transitions 5/995 dead transitions. [2022-12-11 22:29:46,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 731 places, 995 transitions, 66595 flow [2022-12-11 22:29:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2022-12-11 22:29:46,846 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6647788565264293 [2022-12-11 22:29:46,847 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 546 predicate places. [2022-12-11 22:29:46,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 731 places, 995 transitions, 66595 flow [2022-12-11 22:29:46,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 729 places, 990 transitions, 66219 flow [2022-12-11 22:29:46,939 INFO L495 AbstractCegarLoop]: Abstraction has has 729 places, 990 transitions, 66219 flow [2022-12-11 22:29:46,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:46,940 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:46,940 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:46,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-11 22:29:46,940 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:46,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1188732213, now seen corresponding path program 37 times [2022-12-11 22:29:46,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:46,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149941731] [2022-12-11 22:29:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:47,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149941731] [2022-12-11 22:29:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149941731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:47,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:47,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974477215] [2022-12-11 22:29:47,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:47,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:47,583 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:47,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 990 transitions, 66219 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:47,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:47,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:47,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:49,878 INFO L130 PetriNetUnfolder]: 2147/5565 cut-off events. [2022-12-11 22:29:49,878 INFO L131 PetriNetUnfolder]: For 626768/646495 co-relation queries the response was YES. [2022-12-11 22:29:49,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142200 conditions, 5565 events. 2147/5565 cut-off events. For 626768/646495 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 52944 event pairs, 242 based on Foata normal form. 81/5232 useless extension candidates. Maximal degree in co-relation 131372. Up to 3124 conditions per place. [2022-12-11 22:29:49,968 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 787 selfloop transitions, 81 changer transitions 5/998 dead transitions. [2022-12-11 22:29:49,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 998 transitions, 68591 flow [2022-12-11 22:29:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:49,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2022-12-11 22:29:49,969 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6653182308522114 [2022-12-11 22:29:49,970 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 561 predicate places. [2022-12-11 22:29:49,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 746 places, 998 transitions, 68591 flow [2022-12-11 22:29:50,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 744 places, 993 transitions, 68205 flow [2022-12-11 22:29:50,063 INFO L495 AbstractCegarLoop]: Abstraction has has 744 places, 993 transitions, 68205 flow [2022-12-11 22:29:50,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:50,064 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:50,064 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-11 22:29:50,064 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:50,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1987068749, now seen corresponding path program 38 times [2022-12-11 22:29:50,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:50,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024844847] [2022-12-11 22:29:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:50,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:50,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:50,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024844847] [2022-12-11 22:29:50,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024844847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:50,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:50,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:50,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755742397] [2022-12-11 22:29:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:50,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:50,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:50,715 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:50,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 744 places, 993 transitions, 68205 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:50,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:50,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:50,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:52,964 INFO L130 PetriNetUnfolder]: 2147/5593 cut-off events. [2022-12-11 22:29:52,964 INFO L131 PetriNetUnfolder]: For 661025/679910 co-relation queries the response was YES. [2022-12-11 22:29:52,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145627 conditions, 5593 events. 2147/5593 cut-off events. For 661025/679910 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 53620 event pairs, 226 based on Foata normal form. 89/5273 useless extension candidates. Maximal degree in co-relation 134774. Up to 3118 conditions per place. [2022-12-11 22:29:53,059 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 788 selfloop transitions, 81 changer transitions 5/999 dead transitions. [2022-12-11 22:29:53,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 999 transitions, 70444 flow [2022-12-11 22:29:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:29:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:29:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2022-12-11 22:29:53,061 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6642394822006472 [2022-12-11 22:29:53,061 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 576 predicate places. [2022-12-11 22:29:53,061 INFO L82 GeneralOperation]: Start removeDead. Operand has 761 places, 999 transitions, 70444 flow [2022-12-11 22:29:53,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 759 places, 994 transitions, 70048 flow [2022-12-11 22:29:53,325 INFO L495 AbstractCegarLoop]: Abstraction has has 759 places, 994 transitions, 70048 flow [2022-12-11 22:29:53,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:53,325 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:53,325 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:53,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-11 22:29:53,325 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1544835619, now seen corresponding path program 39 times [2022-12-11 22:29:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:53,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575223830] [2022-12-11 22:29:53,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:54,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:54,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575223830] [2022-12-11 22:29:54,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575223830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:54,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:54,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:54,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206102666] [2022-12-11 22:29:54,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:54,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:54,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:54,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:54,146 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:54,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 994 transitions, 70048 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:54,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:54,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:54,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:29:56,708 INFO L130 PetriNetUnfolder]: 2189/5720 cut-off events. [2022-12-11 22:29:56,708 INFO L131 PetriNetUnfolder]: For 698874/716314 co-relation queries the response was YES. [2022-12-11 22:29:56,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152574 conditions, 5720 events. 2189/5720 cut-off events. For 698874/716314 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 54884 event pairs, 238 based on Foata normal form. 75/5369 useless extension candidates. Maximal degree in co-relation 90252. Up to 3198 conditions per place. [2022-12-11 22:29:56,800 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 801 selfloop transitions, 96 changer transitions 5/1027 dead transitions. [2022-12-11 22:29:56,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 777 places, 1027 transitions, 74484 flow [2022-12-11 22:29:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:29:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:29:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2022-12-11 22:29:56,802 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6670924885028104 [2022-12-11 22:29:56,802 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 592 predicate places. [2022-12-11 22:29:56,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 777 places, 1027 transitions, 74484 flow [2022-12-11 22:29:56,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 775 places, 1022 transitions, 74078 flow [2022-12-11 22:29:56,899 INFO L495 AbstractCegarLoop]: Abstraction has has 775 places, 1022 transitions, 74078 flow [2022-12-11 22:29:56,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:56,899 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:29:56,899 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:29:56,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-11 22:29:56,899 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:29:56,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:29:56,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1862478451, now seen corresponding path program 40 times [2022-12-11 22:29:56,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:29:56,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661865942] [2022-12-11 22:29:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:29:56,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:29:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:29:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:29:57,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:29:57,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661865942] [2022-12-11 22:29:57,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661865942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:29:57,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:29:57,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:29:57,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292957980] [2022-12-11 22:29:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:29:57,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:29:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:29:57,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:29:57,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:29:57,593 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:29:57,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1022 transitions, 74078 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:29:57,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:29:57,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:29:57,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:00,232 INFO L130 PetriNetUnfolder]: 2198/5768 cut-off events. [2022-12-11 22:30:00,232 INFO L131 PetriNetUnfolder]: For 739528/759767 co-relation queries the response was YES. [2022-12-11 22:30:00,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157170 conditions, 5768 events. 2198/5768 cut-off events. For 739528/759767 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 55549 event pairs, 250 based on Foata normal form. 67/5404 useless extension candidates. Maximal degree in co-relation 108855. Up to 3213 conditions per place. [2022-12-11 22:30:00,325 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 826 selfloop transitions, 84 changer transitions 5/1040 dead transitions. [2022-12-11 22:30:00,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 1040 transitions, 77358 flow [2022-12-11 22:30:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2022-12-11 22:30:00,326 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6645091693635383 [2022-12-11 22:30:00,327 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 607 predicate places. [2022-12-11 22:30:00,327 INFO L82 GeneralOperation]: Start removeDead. Operand has 792 places, 1040 transitions, 77358 flow [2022-12-11 22:30:00,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 790 places, 1035 transitions, 76942 flow [2022-12-11 22:30:00,426 INFO L495 AbstractCegarLoop]: Abstraction has has 790 places, 1035 transitions, 76942 flow [2022-12-11 22:30:00,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:00,427 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:00,427 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-11 22:30:00,427 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash -99050635, now seen corresponding path program 41 times [2022-12-11 22:30:00,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:00,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696598251] [2022-12-11 22:30:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:00,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:01,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:01,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696598251] [2022-12-11 22:30:01,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696598251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:01,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:01,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:01,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026667172] [2022-12-11 22:30:01,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:01,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:01,108 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:01,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 1035 transitions, 76942 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:01,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:01,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:01,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:03,832 INFO L130 PetriNetUnfolder]: 2240/5889 cut-off events. [2022-12-11 22:30:03,832 INFO L131 PetriNetUnfolder]: For 797664/819332 co-relation queries the response was YES. [2022-12-11 22:30:03,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164372 conditions, 5889 events. 2240/5889 cut-off events. For 797664/819332 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 57018 event pairs, 288 based on Foata normal form. 77/5538 useless extension candidates. Maximal degree in co-relation 113995. Up to 3293 conditions per place. [2022-12-11 22:30:03,931 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 843 selfloop transitions, 89 changer transitions 5/1062 dead transitions. [2022-12-11 22:30:03,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 807 places, 1062 transitions, 81073 flow [2022-12-11 22:30:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2022-12-11 22:30:03,933 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6682847896440129 [2022-12-11 22:30:03,934 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 622 predicate places. [2022-12-11 22:30:03,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 807 places, 1062 transitions, 81073 flow [2022-12-11 22:30:04,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 805 places, 1057 transitions, 80647 flow [2022-12-11 22:30:04,163 INFO L495 AbstractCegarLoop]: Abstraction has has 805 places, 1057 transitions, 80647 flow [2022-12-11 22:30:04,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:04,163 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:04,163 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-11 22:30:04,163 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 223701745, now seen corresponding path program 42 times [2022-12-11 22:30:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:04,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671217999] [2022-12-11 22:30:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:04,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:04,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671217999] [2022-12-11 22:30:04,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671217999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:04,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:04,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:04,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325566020] [2022-12-11 22:30:04,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:04,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:04,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:04,804 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:04,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 805 places, 1057 transitions, 80647 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:04,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:04,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:04,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:07,974 INFO L130 PetriNetUnfolder]: 2289/5943 cut-off events. [2022-12-11 22:30:07,974 INFO L131 PetriNetUnfolder]: For 819378/841202 co-relation queries the response was YES. [2022-12-11 22:30:07,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171837 conditions, 5943 events. 2289/5943 cut-off events. For 819378/841202 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 57394 event pairs, 336 based on Foata normal form. 77/5589 useless extension candidates. Maximal degree in co-relation 101997. Up to 3377 conditions per place. [2022-12-11 22:30:08,075 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 865 selfloop transitions, 94 changer transitions 5/1089 dead transitions. [2022-12-11 22:30:08,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 1089 transitions, 85336 flow [2022-12-11 22:30:08,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:30:08,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:30:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2022-12-11 22:30:08,077 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6670924885028104 [2022-12-11 22:30:08,077 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 638 predicate places. [2022-12-11 22:30:08,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 823 places, 1089 transitions, 85336 flow [2022-12-11 22:30:08,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 1084 transitions, 84900 flow [2022-12-11 22:30:08,186 INFO L495 AbstractCegarLoop]: Abstraction has has 821 places, 1084 transitions, 84900 flow [2022-12-11 22:30:08,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:08,186 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:08,186 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:08,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-11 22:30:08,187 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash 572790773, now seen corresponding path program 43 times [2022-12-11 22:30:08,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:08,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382281696] [2022-12-11 22:30:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:08,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382281696] [2022-12-11 22:30:08,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382281696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:08,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:08,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:08,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162970401] [2022-12-11 22:30:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:08,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:08,899 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:08,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 821 places, 1084 transitions, 84900 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:08,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:08,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:08,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:12,356 INFO L130 PetriNetUnfolder]: 2328/6113 cut-off events. [2022-12-11 22:30:12,357 INFO L131 PetriNetUnfolder]: For 911388/935250 co-relation queries the response was YES. [2022-12-11 22:30:12,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178845 conditions, 6113 events. 2328/6113 cut-off events. For 911388/935250 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 59604 event pairs, 247 based on Foata normal form. 74/5726 useless extension candidates. Maximal degree in co-relation 103353. Up to 3444 conditions per place. [2022-12-11 22:30:12,462 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 888 selfloop transitions, 94 changer transitions 5/1112 dead transitions. [2022-12-11 22:30:12,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 839 places, 1112 transitions, 89377 flow [2022-12-11 22:30:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:30:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:30:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2022-12-11 22:30:12,464 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6670924885028104 [2022-12-11 22:30:12,464 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 654 predicate places. [2022-12-11 22:30:12,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 839 places, 1112 transitions, 89377 flow [2022-12-11 22:30:12,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 837 places, 1107 transitions, 88931 flow [2022-12-11 22:30:12,578 INFO L495 AbstractCegarLoop]: Abstraction has has 837 places, 1107 transitions, 88931 flow [2022-12-11 22:30:12,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:12,578 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:12,578 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:12,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-11 22:30:12,578 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:12,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1207687661, now seen corresponding path program 44 times [2022-12-11 22:30:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:12,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759541321] [2022-12-11 22:30:12,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:12,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:13,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:13,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759541321] [2022-12-11 22:30:13,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759541321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:13,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:13,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252894487] [2022-12-11 22:30:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:13,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:13,245 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:13,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 837 places, 1107 transitions, 88931 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:13,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:13,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:13,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:16,500 INFO L130 PetriNetUnfolder]: 2367/6227 cut-off events. [2022-12-11 22:30:16,500 INFO L131 PetriNetUnfolder]: For 978539/1005031 co-relation queries the response was YES. [2022-12-11 22:30:16,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185931 conditions, 6227 events. 2367/6227 cut-off events. For 978539/1005031 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 61104 event pairs, 322 based on Foata normal form. 98/5865 useless extension candidates. Maximal degree in co-relation 106759. Up to 3511 conditions per place. [2022-12-11 22:30:16,611 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 906 selfloop transitions, 99 changer transitions 5/1135 dead transitions. [2022-12-11 22:30:16,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 855 places, 1135 transitions, 93510 flow [2022-12-11 22:30:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:30:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:30:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2022-12-11 22:30:16,613 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6665815022994379 [2022-12-11 22:30:16,614 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 670 predicate places. [2022-12-11 22:30:16,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 855 places, 1135 transitions, 93510 flow [2022-12-11 22:30:16,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 853 places, 1130 transitions, 93054 flow [2022-12-11 22:30:16,849 INFO L495 AbstractCegarLoop]: Abstraction has has 853 places, 1130 transitions, 93054 flow [2022-12-11 22:30:16,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:16,849 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:16,849 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-11 22:30:16,850 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:16,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1032542697, now seen corresponding path program 45 times [2022-12-11 22:30:16,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:16,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704891857] [2022-12-11 22:30:16,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:16,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:17,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704891857] [2022-12-11 22:30:17,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704891857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:17,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:17,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335367181] [2022-12-11 22:30:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:17,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:17,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:17,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:17,545 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:17,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1130 transitions, 93054 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:17,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:17,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:17,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:21,142 INFO L130 PetriNetUnfolder]: 2366/6233 cut-off events. [2022-12-11 22:30:21,142 INFO L131 PetriNetUnfolder]: For 1027249/1054672 co-relation queries the response was YES. [2022-12-11 22:30:21,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189687 conditions, 6233 events. 2366/6233 cut-off events. For 1027249/1054672 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 61212 event pairs, 236 based on Foata normal form. 72/5833 useless extension candidates. Maximal degree in co-relation 109119. Up to 3505 conditions per place. [2022-12-11 22:30:21,368 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 913 selfloop transitions, 93 changer transitions 5/1136 dead transitions. [2022-12-11 22:30:21,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 870 places, 1136 transitions, 95651 flow [2022-12-11 22:30:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2022-12-11 22:30:21,370 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6655879180151025 [2022-12-11 22:30:21,370 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 685 predicate places. [2022-12-11 22:30:21,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 870 places, 1136 transitions, 95651 flow [2022-12-11 22:30:21,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 868 places, 1131 transitions, 95185 flow [2022-12-11 22:30:21,491 INFO L495 AbstractCegarLoop]: Abstraction has has 868 places, 1131 transitions, 95185 flow [2022-12-11 22:30:21,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:21,491 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:21,492 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:21,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-11 22:30:21,492 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:21,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:21,492 INFO L85 PathProgramCache]: Analyzing trace with hash -734548311, now seen corresponding path program 46 times [2022-12-11 22:30:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:21,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403098327] [2022-12-11 22:30:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:22,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:22,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403098327] [2022-12-11 22:30:22,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403098327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:22,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:22,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:22,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870904026] [2022-12-11 22:30:22,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:22,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:22,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:22,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:22,093 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:22,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 1131 transitions, 95185 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:22,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:22,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:22,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:25,597 INFO L130 PetriNetUnfolder]: 2417/6388 cut-off events. [2022-12-11 22:30:25,597 INFO L131 PetriNetUnfolder]: For 1085363/1111399 co-relation queries the response was YES. [2022-12-11 22:30:25,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198160 conditions, 6388 events. 2417/6388 cut-off events. For 1085363/1111399 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 63240 event pairs, 294 based on Foata normal form. 86/6006 useless extension candidates. Maximal degree in co-relation 113745. Up to 3579 conditions per place. [2022-12-11 22:30:25,713 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 937 selfloop transitions, 93 changer transitions 5/1160 dead transitions. [2022-12-11 22:30:25,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 886 places, 1160 transitions, 99965 flow [2022-12-11 22:30:25,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:30:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:30:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2615 transitions. [2022-12-11 22:30:25,715 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6681144609095554 [2022-12-11 22:30:25,715 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 701 predicate places. [2022-12-11 22:30:25,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 886 places, 1160 transitions, 99965 flow [2022-12-11 22:30:25,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 884 places, 1155 transitions, 99489 flow [2022-12-11 22:30:25,847 INFO L495 AbstractCegarLoop]: Abstraction has has 884 places, 1155 transitions, 99489 flow [2022-12-11 22:30:25,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:25,847 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:25,847 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:25,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-11 22:30:25,847 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:25,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1594354875, now seen corresponding path program 47 times [2022-12-11 22:30:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:25,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616391257] [2022-12-11 22:30:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:25,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:26,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:26,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616391257] [2022-12-11 22:30:26,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616391257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:26,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:26,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:26,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147235478] [2022-12-11 22:30:26,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:26,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:26,567 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:26,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 884 places, 1155 transitions, 99489 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:26,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:26,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:26,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:30,229 INFO L130 PetriNetUnfolder]: 2422/6351 cut-off events. [2022-12-11 22:30:30,229 INFO L131 PetriNetUnfolder]: For 1121888/1154477 co-relation queries the response was YES. [2022-12-11 22:30:30,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202952 conditions, 6351 events. 2422/6351 cut-off events. For 1121888/1154477 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 62600 event pairs, 365 based on Foata normal form. 71/5954 useless extension candidates. Maximal degree in co-relation 116520. Up to 3591 conditions per place. [2022-12-11 22:30:30,348 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 950 selfloop transitions, 88 changer transitions 5/1168 dead transitions. [2022-12-11 22:30:30,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 901 places, 1168 transitions, 102824 flow [2022-12-11 22:30:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2022-12-11 22:30:30,350 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6650485436893204 [2022-12-11 22:30:30,350 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 716 predicate places. [2022-12-11 22:30:30,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 901 places, 1168 transitions, 102824 flow [2022-12-11 22:30:30,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 1163 transitions, 102338 flow [2022-12-11 22:30:30,543 INFO L495 AbstractCegarLoop]: Abstraction has has 899 places, 1163 transitions, 102338 flow [2022-12-11 22:30:30,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:30,544 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:30,544 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-11 22:30:30,544 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:30,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash 405448187, now seen corresponding path program 48 times [2022-12-11 22:30:30,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:30,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100198462] [2022-12-11 22:30:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:31,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:31,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100198462] [2022-12-11 22:30:31,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100198462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:31,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:31,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:31,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877289567] [2022-12-11 22:30:31,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:31,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:31,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:31,260 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:31,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 899 places, 1163 transitions, 102338 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:31,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:31,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:31,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:35,112 INFO L130 PetriNetUnfolder]: 2473/6576 cut-off events. [2022-12-11 22:30:35,112 INFO L131 PetriNetUnfolder]: For 1209333/1237784 co-relation queries the response was YES. [2022-12-11 22:30:35,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211786 conditions, 6576 events. 2473/6576 cut-off events. For 1209333/1237784 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 66015 event pairs, 244 based on Foata normal form. 83/6172 useless extension candidates. Maximal degree in co-relation 129678. Up to 3665 conditions per place. [2022-12-11 22:30:35,233 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 968 selfloop transitions, 94 changer transitions 5/1192 dead transitions. [2022-12-11 22:30:35,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 916 places, 1192 transitions, 107298 flow [2022-12-11 22:30:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2480 transitions. [2022-12-11 22:30:35,235 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.668824163969795 [2022-12-11 22:30:35,235 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 731 predicate places. [2022-12-11 22:30:35,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 916 places, 1192 transitions, 107298 flow [2022-12-11 22:30:35,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 914 places, 1187 transitions, 106802 flow [2022-12-11 22:30:35,368 INFO L495 AbstractCegarLoop]: Abstraction has has 914 places, 1187 transitions, 106802 flow [2022-12-11 22:30:35,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:35,369 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:35,369 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:35,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-11 22:30:35,369 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:35,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1659898487, now seen corresponding path program 49 times [2022-12-11 22:30:35,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:35,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790210677] [2022-12-11 22:30:35,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:35,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:36,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790210677] [2022-12-11 22:30:36,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790210677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:36,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:36,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:36,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257589462] [2022-12-11 22:30:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:36,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:36,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:36,046 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:36,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 914 places, 1187 transitions, 106802 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:36,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:36,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:36,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:40,436 INFO L130 PetriNetUnfolder]: 2502/6548 cut-off events. [2022-12-11 22:30:40,436 INFO L131 PetriNetUnfolder]: For 1254390/1294702 co-relation queries the response was YES. [2022-12-11 22:30:40,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218482 conditions, 6548 events. 2502/6548 cut-off events. For 1254390/1294702 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 65032 event pairs, 376 based on Foata normal form. 88/6155 useless extension candidates. Maximal degree in co-relation 124661. Up to 3715 conditions per place. [2022-12-11 22:30:40,591 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 992 selfloop transitions, 97 changer transitions 5/1219 dead transitions. [2022-12-11 22:30:40,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 1219 transitions, 112251 flow [2022-12-11 22:30:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 22:30:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 22:30:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2022-12-11 22:30:40,593 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6670924885028104 [2022-12-11 22:30:40,594 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 747 predicate places. [2022-12-11 22:30:40,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 932 places, 1219 transitions, 112251 flow [2022-12-11 22:30:40,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 930 places, 1214 transitions, 111745 flow [2022-12-11 22:30:40,776 INFO L495 AbstractCegarLoop]: Abstraction has has 930 places, 1214 transitions, 111745 flow [2022-12-11 22:30:40,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:40,776 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:40,776 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:40,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-11 22:30:40,776 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1637482385, now seen corresponding path program 50 times [2022-12-11 22:30:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:40,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572868018] [2022-12-11 22:30:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:41,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:41,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572868018] [2022-12-11 22:30:41,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572868018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:41,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:41,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:41,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673943526] [2022-12-11 22:30:41,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:41,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:41,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:41,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:41,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:41,470 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:41,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 1214 transitions, 111745 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:41,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:41,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:41,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:45,829 INFO L130 PetriNetUnfolder]: 2528/6646 cut-off events. [2022-12-11 22:30:45,829 INFO L131 PetriNetUnfolder]: For 1291351/1321244 co-relation queries the response was YES. [2022-12-11 22:30:45,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225096 conditions, 6646 events. 2528/6646 cut-off events. For 1291351/1321244 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 66455 event pairs, 365 based on Foata normal form. 83/6255 useless extension candidates. Maximal degree in co-relation 161887. Up to 3736 conditions per place. [2022-12-11 22:30:45,955 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 1012 selfloop transitions, 97 changer transitions 5/1239 dead transitions. [2022-12-11 22:30:45,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 1239 transitions, 116502 flow [2022-12-11 22:30:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:45,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2022-12-11 22:30:45,957 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6672060409924487 [2022-12-11 22:30:45,957 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 762 predicate places. [2022-12-11 22:30:45,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 947 places, 1239 transitions, 116502 flow [2022-12-11 22:30:46,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 945 places, 1234 transitions, 115986 flow [2022-12-11 22:30:46,110 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 1234 transitions, 115986 flow [2022-12-11 22:30:46,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:46,110 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:46,110 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:46,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-11 22:30:46,110 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:46,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:46,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1703832247, now seen corresponding path program 51 times [2022-12-11 22:30:46,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:46,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972626944] [2022-12-11 22:30:46,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:46,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:46,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:46,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972626944] [2022-12-11 22:30:46,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972626944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:46,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:46,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:46,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114015997] [2022-12-11 22:30:46,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:46,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:46,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:46,722 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:46,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 1234 transitions, 115986 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:46,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:46,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:46,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:51,132 INFO L130 PetriNetUnfolder]: 2534/6661 cut-off events. [2022-12-11 22:30:51,132 INFO L131 PetriNetUnfolder]: For 1369011/1401181 co-relation queries the response was YES. [2022-12-11 22:30:51,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229564 conditions, 6661 events. 2534/6661 cut-off events. For 1369011/1401181 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 66522 event pairs, 322 based on Foata normal form. 81/6253 useless extension candidates. Maximal degree in co-relation 139526. Up to 3733 conditions per place. [2022-12-11 22:30:51,288 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 1017 selfloop transitions, 100 changer transitions 5/1247 dead transitions. [2022-12-11 22:30:51,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 1247 transitions, 119590 flow [2022-12-11 22:30:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:51,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2022-12-11 22:30:51,290 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6669363538295577 [2022-12-11 22:30:51,290 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 777 predicate places. [2022-12-11 22:30:51,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 962 places, 1247 transitions, 119590 flow [2022-12-11 22:30:51,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 960 places, 1242 transitions, 119064 flow [2022-12-11 22:30:51,435 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 1242 transitions, 119064 flow [2022-12-11 22:30:51,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:51,436 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:51,436 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:51,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-11 22:30:51,436 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:51,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash -478342853, now seen corresponding path program 52 times [2022-12-11 22:30:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:51,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696421513] [2022-12-11 22:30:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:51,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:52,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:52,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:52,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696421513] [2022-12-11 22:30:52,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696421513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:52,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:52,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:52,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248511251] [2022-12-11 22:30:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:52,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:52,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:52,184 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:52,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 1242 transitions, 119064 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:52,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:52,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:52,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:30:56,552 INFO L130 PetriNetUnfolder]: 2534/6689 cut-off events. [2022-12-11 22:30:56,552 INFO L131 PetriNetUnfolder]: For 1398535/1426671 co-relation queries the response was YES. [2022-12-11 22:30:56,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233591 conditions, 6689 events. 2534/6689 cut-off events. For 1398535/1426671 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 67093 event pairs, 312 based on Foata normal form. 89/6294 useless extension candidates. Maximal degree in co-relation 134645. Up to 3727 conditions per place. [2022-12-11 22:30:56,680 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 1018 selfloop transitions, 100 changer transitions 5/1248 dead transitions. [2022-12-11 22:30:56,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 977 places, 1248 transitions, 121969 flow [2022-12-11 22:30:56,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:30:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:30:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2469 transitions. [2022-12-11 22:30:56,682 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6658576051779935 [2022-12-11 22:30:56,682 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 792 predicate places. [2022-12-11 22:30:56,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 977 places, 1248 transitions, 121969 flow [2022-12-11 22:30:56,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 975 places, 1243 transitions, 121433 flow [2022-12-11 22:30:56,826 INFO L495 AbstractCegarLoop]: Abstraction has has 975 places, 1243 transitions, 121433 flow [2022-12-11 22:30:56,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:56,827 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:30:56,827 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:30:56,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-11 22:30:56,827 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:30:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:30:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash -342442293, now seen corresponding path program 53 times [2022-12-11 22:30:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:30:56,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637187990] [2022-12-11 22:30:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:30:56,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:30:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:30:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:30:57,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:30:57,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637187990] [2022-12-11 22:30:57,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637187990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:30:57,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:30:57,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:30:57,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657072079] [2022-12-11 22:30:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:30:57,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:30:57,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:30:57,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:30:57,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:30:57,477 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:30:57,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 975 places, 1243 transitions, 121433 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:30:57,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:30:57,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:30:57,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:31:01,717 INFO L130 PetriNetUnfolder]: 2534/6662 cut-off events. [2022-12-11 22:31:01,717 INFO L131 PetriNetUnfolder]: For 1484564/1518913 co-relation queries the response was YES. [2022-12-11 22:31:01,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237551 conditions, 6662 events. 2534/6662 cut-off events. For 1484564/1518913 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 66947 event pairs, 247 based on Foata normal form. 88/6254 useless extension candidates. Maximal degree in co-relation 222504. Up to 3721 conditions per place. [2022-12-11 22:31:01,845 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 1023 selfloop transitions, 98 changer transitions 5/1251 dead transitions. [2022-12-11 22:31:01,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 1251 transitions, 124567 flow [2022-12-11 22:31:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:31:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:31:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2022-12-11 22:31:01,847 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6663969795037756 [2022-12-11 22:31:01,847 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 807 predicate places. [2022-12-11 22:31:01,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 992 places, 1251 transitions, 124567 flow [2022-12-11 22:31:02,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 990 places, 1246 transitions, 124021 flow [2022-12-11 22:31:02,060 INFO L495 AbstractCegarLoop]: Abstraction has has 990 places, 1246 transitions, 124021 flow [2022-12-11 22:31:02,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:31:02,060 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:31:02,060 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:31:02,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-11 22:31:02,060 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:31:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:31:02,061 INFO L85 PathProgramCache]: Analyzing trace with hash 618726693, now seen corresponding path program 54 times [2022-12-11 22:31:02,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:31:02,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379957097] [2022-12-11 22:31:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:02,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:31:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:31:02,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:31:02,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379957097] [2022-12-11 22:31:02,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379957097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:31:02,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:31:02,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-11 22:31:02,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316785027] [2022-12-11 22:31:02,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:31:02,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 22:31:02,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:31:02,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 22:31:02,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:31:02,629 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 206 [2022-12-11 22:31:02,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 990 places, 1246 transitions, 124021 flow. Second operand has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:31:02,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:31:02,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 206 [2022-12-11 22:31:02,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:31:07,140 INFO L130 PetriNetUnfolder]: 2534/6643 cut-off events. [2022-12-11 22:31:07,140 INFO L131 PetriNetUnfolder]: For 1529863/1564241 co-relation queries the response was YES. [2022-12-11 22:31:07,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241507 conditions, 6643 events. 2534/6643 cut-off events. For 1529863/1564241 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 66515 event pairs, 315 based on Foata normal form. 76/6223 useless extension candidates. Maximal degree in co-relation 139660. Up to 3715 conditions per place. [2022-12-11 22:31:07,371 INFO L137 encePairwiseOnDemand]: 187/206 looper letters, 1024 selfloop transitions, 98 changer transitions 5/1252 dead transitions. [2022-12-11 22:31:07,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1007 places, 1252 transitions, 126958 flow [2022-12-11 22:31:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 22:31:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 22:31:07,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2022-12-11 22:31:07,373 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6653182308522114 [2022-12-11 22:31:07,373 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 822 predicate places. [2022-12-11 22:31:07,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 1007 places, 1252 transitions, 126958 flow [2022-12-11 22:31:07,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1005 places, 1247 transitions, 126402 flow [2022-12-11 22:31:07,523 INFO L495 AbstractCegarLoop]: Abstraction has has 1005 places, 1247 transitions, 126402 flow [2022-12-11 22:31:07,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.83333333333334) internal successors, (2373), 18 states have internal predecessors, (2373), 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) [2022-12-11 22:31:07,523 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:31:07,525 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:31:07,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-11 22:31:07,525 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:31:07,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:31:07,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1525218346, now seen corresponding path program 1 times [2022-12-11 22:31:07,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:31:07,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857120146] [2022-12-11 22:31:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:07,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:31:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:07,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:31:07,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857120146] [2022-12-11 22:31:07,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857120146] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:31:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549887275] [2022-12-11 22:31:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:31:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:31:07,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:31:07,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 22:31:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:07,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 22:31:07,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:31:08,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 22:31:08,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 22:31:08,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549887275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:31:08,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 22:31:08,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-12-11 22:31:08,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551572462] [2022-12-11 22:31:08,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:31:08,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-11 22:31:08,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:31:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-11 22:31:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-11 22:31:08,152 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 206 [2022-12-11 22:31:08,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1005 places, 1247 transitions, 126402 flow. Second operand has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 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) [2022-12-11 22:31:08,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:31:08,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 206 [2022-12-11 22:31:08,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:31:13,024 INFO L130 PetriNetUnfolder]: 3371/8823 cut-off events. [2022-12-11 22:31:13,024 INFO L131 PetriNetUnfolder]: For 2075921/2113255 co-relation queries the response was YES. [2022-12-11 22:31:13,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321612 conditions, 8823 events. 3371/8823 cut-off events. For 2075921/2113255 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 93916 event pairs, 674 based on Foata normal form. 256/8372 useless extension candidates. Maximal degree in co-relation 205360. Up to 5005 conditions per place. [2022-12-11 22:31:13,190 INFO L137 encePairwiseOnDemand]: 203/206 looper letters, 583 selfloop transitions, 234 changer transitions 66/1487 dead transitions. [2022-12-11 22:31:13,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1008 places, 1487 transitions, 156605 flow [2022-12-11 22:31:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-11 22:31:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-11 22:31:13,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 741 transitions. [2022-12-11 22:31:13,191 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8992718446601942 [2022-12-11 22:31:13,191 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 823 predicate places. [2022-12-11 22:31:13,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 1008 places, 1487 transitions, 156605 flow [2022-12-11 22:31:13,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1008 places, 1421 transitions, 148619 flow [2022-12-11 22:31:13,373 INFO L495 AbstractCegarLoop]: Abstraction has has 1008 places, 1421 transitions, 148619 flow [2022-12-11 22:31:13,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 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) [2022-12-11 22:31:13,373 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:31:13,373 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:31:13,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-11 22:31:13,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-12-11 22:31:13,578 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:31:13,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:31:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash 652433922, now seen corresponding path program 1 times [2022-12-11 22:31:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:31:13,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044175479] [2022-12-11 22:31:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:13,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:31:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:13,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:13,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:31:13,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044175479] [2022-12-11 22:31:13,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044175479] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:31:13,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763468853] [2022-12-11 22:31:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:13,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:31:13,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:31:13,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:31:13,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 22:31:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:13,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-11 22:31:13,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:31:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:14,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:31:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:14,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763468853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:31:14,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:31:14,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-11 22:31:14,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763196144] [2022-12-11 22:31:14,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:31:14,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 22:31:14,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:31:14,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 22:31:14,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-11 22:31:14,349 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 206 [2022-12-11 22:31:14,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1008 places, 1421 transitions, 148619 flow. Second operand has 19 states, 19 states have (on average 154.6315789473684) internal successors, (2938), 19 states have internal predecessors, (2938), 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) [2022-12-11 22:31:14,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:31:14,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 206 [2022-12-11 22:31:14,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:31:24,802 INFO L130 PetriNetUnfolder]: 6146/15885 cut-off events. [2022-12-11 22:31:24,802 INFO L131 PetriNetUnfolder]: For 3318013/3379013 co-relation queries the response was YES. [2022-12-11 22:31:24,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588722 conditions, 15885 events. 6146/15885 cut-off events. For 3318013/3379013 co-relation queries the response was YES. Maximal size of possible extension queue 1207. Compared 181817 event pairs, 1118 based on Foata normal form. 201/14777 useless extension candidates. Maximal degree in co-relation 306399. Up to 8988 conditions per place. [2022-12-11 22:31:25,105 INFO L137 encePairwiseOnDemand]: 190/206 looper letters, 1630 selfloop transitions, 28 changer transitions 20/2248 dead transitions. [2022-12-11 22:31:25,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 2248 transitions, 248253 flow [2022-12-11 22:31:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 22:31:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 22:31:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2646 transitions. [2022-12-11 22:31:25,107 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7555682467161622 [2022-12-11 22:31:25,108 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 839 predicate places. [2022-12-11 22:31:25,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 1024 places, 2248 transitions, 248253 flow [2022-12-11 22:31:25,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1024 places, 2228 transitions, 245832 flow [2022-12-11 22:31:25,516 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 2228 transitions, 245832 flow [2022-12-11 22:31:25,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 154.6315789473684) internal successors, (2938), 19 states have internal predecessors, (2938), 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) [2022-12-11 22:31:25,516 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:31:25,516 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:31:25,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 22:31:25,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-12-11 22:31:25,721 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:31:25,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:31:25,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1661997268, now seen corresponding path program 1 times [2022-12-11 22:31:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:31:25,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891680142] [2022-12-11 22:31:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:31:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:25,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:31:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891680142] [2022-12-11 22:31:25,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891680142] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:31:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934559613] [2022-12-11 22:31:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:25,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:31:25,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:31:25,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:31:25,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 22:31:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:26,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-11 22:31:26,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:31:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:26,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:31:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:26,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934559613] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:31:26,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:31:26,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-11 22:31:26,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144576792] [2022-12-11 22:31:26,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:31:26,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 22:31:26,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:31:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 22:31:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-11 22:31:26,354 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 206 [2022-12-11 22:31:26,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 2228 transitions, 245832 flow. Second operand has 19 states, 19 states have (on average 154.57894736842104) internal successors, (2937), 19 states have internal predecessors, (2937), 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) [2022-12-11 22:31:26,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:31:26,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 206 [2022-12-11 22:31:26,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:31:49,818 INFO L130 PetriNetUnfolder]: 7400/21629 cut-off events. [2022-12-11 22:31:49,818 INFO L131 PetriNetUnfolder]: For 4916620/4995674 co-relation queries the response was YES. [2022-12-11 22:31:49,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765909 conditions, 21629 events. 7400/21629 cut-off events. For 4916620/4995674 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 273915 event pairs, 1032 based on Foata normal form. 865/20720 useless extension candidates. Maximal degree in co-relation 276750. Up to 11559 conditions per place. [2022-12-11 22:31:50,215 INFO L137 encePairwiseOnDemand]: 193/206 looper letters, 1677 selfloop transitions, 31 changer transitions 748/3026 dead transitions. [2022-12-11 22:31:50,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1036 places, 3026 transitions, 346253 flow [2022-12-11 22:31:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 22:31:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 22:31:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2031 transitions. [2022-12-11 22:31:50,235 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7584017923823749 [2022-12-11 22:31:50,236 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 851 predicate places. [2022-12-11 22:31:50,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 1036 places, 3026 transitions, 346253 flow [2022-12-11 22:31:50,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1036 places, 2278 transitions, 254062 flow [2022-12-11 22:31:50,721 INFO L495 AbstractCegarLoop]: Abstraction has has 1036 places, 2278 transitions, 254062 flow [2022-12-11 22:31:50,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 154.57894736842104) internal successors, (2937), 19 states have internal predecessors, (2937), 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) [2022-12-11 22:31:50,721 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:31:50,721 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:31:50,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-11 22:31:50,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:31:50,927 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:31:50,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:31:50,927 INFO L85 PathProgramCache]: Analyzing trace with hash -161450634, now seen corresponding path program 2 times [2022-12-11 22:31:50,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:31:50,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542270617] [2022-12-11 22:31:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:31:50,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:31:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:31:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:31:51,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542270617] [2022-12-11 22:31:51,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542270617] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:31:51,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519669789] [2022-12-11 22:31:51,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 22:31:51,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:31:51,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:31:51,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:31:51,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-11 22:31:52,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 22:31:52,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:31:52,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-11 22:31:52,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:31:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:31:53,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-11 22:31:53,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:31:53,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-11 22:31:53,711 INFO L321 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2022-12-11 22:31:53,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2022-12-11 22:31:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:53,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:31:54,259 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:31:54,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 81 [2022-12-11 22:31:54,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-12-11 22:31:54,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-11 22:31:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:31:55,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519669789] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:31:55,859 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:31:55,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 27, 28] total 70 [2022-12-11 22:31:55,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895813164] [2022-12-11 22:31:55,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:31:55,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-11 22:31:55,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:31:55,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-11 22:31:55,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=4419, Unknown=2, NotChecked=0, Total=4830 [2022-12-11 22:31:55,863 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 206 [2022-12-11 22:31:55,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1036 places, 2278 transitions, 254062 flow. Second operand has 70 states, 70 states have (on average 88.64285714285714) internal successors, (6205), 70 states have internal predecessors, (6205), 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) [2022-12-11 22:31:55,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:31:55,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 206 [2022-12-11 22:31:55,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:35:58,708 INFO L130 PetriNetUnfolder]: 72600/153016 cut-off events. [2022-12-11 22:35:58,708 INFO L131 PetriNetUnfolder]: For 31879281/32249158 co-relation queries the response was YES. [2022-12-11 22:36:00,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5711949 conditions, 153016 events. 72600/153016 cut-off events. For 31879281/32249158 co-relation queries the response was YES. Maximal size of possible extension queue 4361. Compared 1873271 event pairs, 26251 based on Foata normal form. 1779/139787 useless extension candidates. Maximal degree in co-relation 2895572. Up to 94809 conditions per place. [2022-12-11 22:36:03,674 INFO L137 encePairwiseOnDemand]: 157/206 looper letters, 3321 selfloop transitions, 917 changer transitions 59/4811 dead transitions. [2022-12-11 22:36:03,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1153 places, 4811 transitions, 541850 flow [2022-12-11 22:36:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-12-11 22:36:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2022-12-11 22:36:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 10792 transitions. [2022-12-11 22:36:03,681 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4439690636827382 [2022-12-11 22:36:03,682 INFO L295 CegarLoopForPetriNet]: 185 programPoint places, 968 predicate places. [2022-12-11 22:36:03,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 1153 places, 4811 transitions, 541850 flow [2022-12-11 22:36:06,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1153 places, 4752 transitions, 534483 flow [2022-12-11 22:36:06,990 INFO L495 AbstractCegarLoop]: Abstraction has has 1153 places, 4752 transitions, 534483 flow [2022-12-11 22:36:06,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 88.64285714285714) internal successors, (6205), 70 states have internal predecessors, (6205), 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) [2022-12-11 22:36:06,991 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:36:06,991 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:36:07,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-11 22:36:07,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:36:07,196 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:36:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:36:07,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1411145724, now seen corresponding path program 3 times [2022-12-11 22:36:07,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:36:07,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188179456] [2022-12-11 22:36:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:36:07,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:36:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:36:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:36:08,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:36:08,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188179456] [2022-12-11 22:36:08,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188179456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:36:08,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268535716] [2022-12-11 22:36:08,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-11 22:36:08,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:36:08,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:36:08,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:36:08,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-11 22:36:08,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-11 22:36:08,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:36:08,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-11 22:36:08,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:36:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:36:09,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-11 22:36:09,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:36:09,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-11 22:36:09,753 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-12-11 22:36:09,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-12-11 22:36:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-11 22:36:09,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:36:10,019 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:36:10,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 81 [2022-12-11 22:36:10,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-12-11 22:36:10,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-11 22:36:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-11 22:36:10,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268535716] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:36:10,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:36:10,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 14, 14] total 45 [2022-12-11 22:36:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717337467] [2022-12-11 22:36:10,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:36:10,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-11 22:36:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:36:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-11 22:36:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1840, Unknown=1, NotChecked=0, Total=1980 [2022-12-11 22:36:10,563 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 206 [2022-12-11 22:36:10,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1153 places, 4752 transitions, 534483 flow. Second operand has 45 states, 45 states have (on average 94.33333333333333) internal successors, (4245), 45 states have internal predecessors, (4245), 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) [2022-12-11 22:36:10,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:36:10,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 206 [2022-12-11 22:36:10,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-11 22:40:40,938 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:40:40,939 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:40:42,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-11 22:40:42,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-12-11 22:40:42,066 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 22:40:42,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-11 22:40:42,067 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-12-11 22:40:42,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 22:40:42,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 22:40:42,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 22:40:42,068 INFO L445 BasicCegarLoop]: Path program histogram: [54, 3, 1, 1, 1, 1, 1] [2022-12-11 22:40:42,071 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 22:40:42,071 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 22:40:42,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 10:40:42 BasicIcfg [2022-12-11 22:40:42,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 22:40:42,080 INFO L158 Benchmark]: Toolchain (without parser) took 735325.64ms. Allocated memory was 212.9MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 189.7MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 7.1GB. Max. memory is 8.0GB. [2022-12-11 22:40:42,080 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 212.9MB. Free memory is still 189.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 22:40:42,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.89ms. Allocated memory is still 212.9MB. Free memory was 189.7MB in the beginning and 176.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 22:40:42,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.48ms. Allocated memory is still 212.9MB. Free memory was 176.1MB in the beginning and 174.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 22:40:42,084 INFO L158 Benchmark]: Boogie Preprocessor took 30.40ms. Allocated memory is still 212.9MB. Free memory was 174.0MB in the beginning and 171.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 22:40:42,084 INFO L158 Benchmark]: RCFGBuilder took 641.83ms. Allocated memory is still 212.9MB. Free memory was 171.9MB in the beginning and 138.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-12-11 22:40:42,084 INFO L158 Benchmark]: TraceAbstraction took 734387.37ms. Allocated memory was 212.9MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 136.7MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 7.0GB. Max. memory is 8.0GB. [2022-12-11 22:40:42,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 212.9MB. Free memory is still 189.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.89ms. Allocated memory is still 212.9MB. Free memory was 189.7MB in the beginning and 176.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.48ms. Allocated memory is still 212.9MB. Free memory was 176.1MB in the beginning and 174.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.40ms. Allocated memory is still 212.9MB. Free memory was 174.0MB in the beginning and 171.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 641.83ms. Allocated memory is still 212.9MB. Free memory was 171.9MB in the beginning and 138.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 734387.37ms. Allocated memory was 212.9MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 136.7MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 7.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 225 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 9.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 734.2s, OverallIterations: 62, TraceHistogramMax: 2, PathProgramHistogramMax: 54, EmptinessCheckTime: 0.0s, AutomataDifference: 674.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 11814 SdHoareTripleChecker+Valid, 19.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11814 mSDsluCounter, 18725 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16382 mSDsCounter, 633 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43393 IncrementalHoareTripleChecker+Invalid, 44033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 633 mSolverCounterUnsat, 2343 mSDtfsCounter, 43393 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3069 GetRequests, 1601 SyntacticMatches, 10 SemanticMatches, 1458 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17686 ImplicationChecksByTransitivity, 31.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=534483occurred in iteration=61, InterpolantAutomatonStates: 1142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.1s AutomataMinimizationTime, 61 MinimizatonAttempts, 125784 StatesRemovedByMinimization, 61 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 45.7s InterpolantComputationTime, 11164 NumberOfCodeBlocks, 11157 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 11795 ConstructedInterpolants, 54 QuantifiedInterpolants, 182054 SizeOfPredicates, 69 NumberOfNonLiveVariables, 2189 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 71 InterpolantComputations, 58 PerfectInterpolantSequences, 163/222 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown