/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:58:09,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:58:09,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:58:09,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:58:09,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:58:09,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:58:09,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:58:09,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:58:09,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:58:09,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:58:09,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:58:09,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:58:09,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:58:09,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:58:09,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:58:09,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:58:09,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:58:09,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:58:09,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:58:09,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:58:09,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:58:09,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:58:09,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:58:09,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:58:09,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 22:58:09,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 22:58:09,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 22:58:09,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 22:58:09,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 22:58:09,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 22:58:09,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:58:09,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:58:09,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:58:09,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:58:09,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:58:09,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:58:09,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:58:09,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:58:09,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:58:09,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:58:09,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:58:09,103 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 [2022-09-20 22:58:09,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:58:09,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:58:09,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:58:09,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:58:09,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:58:09,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:58:09,128 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:58:09,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:58:09,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:58:09,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:58:09,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:58:09,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:58:09,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:58:09,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:58:09,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:58:09,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:58:09,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:58:09,132 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:58:09,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:58:09,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:58:09,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:58:09,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:58:09,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:58:09,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:58:09,342 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:58:09,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-09-20 22:58:09,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451629b9e/631a7b469c7444c38290baf218e286b5/FLAG4d3f73a8e [2022-09-20 22:58:09,762 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:58:09,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-09-20 22:58:09,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451629b9e/631a7b469c7444c38290baf218e286b5/FLAG4d3f73a8e [2022-09-20 22:58:09,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/451629b9e/631a7b469c7444c38290baf218e286b5 [2022-09-20 22:58:09,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:58:09,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:58:09,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:58:09,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:58:09,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:58:09,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:58:09" (1/1) ... [2022-09-20 22:58:09,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb7681b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:09, skipping insertion in model container [2022-09-20 22:58:09,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:58:09" (1/1) ... [2022-09-20 22:58:09,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:58:09,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:58:10,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-09-20 22:58:10,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:58:10,028 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:58:10,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-09-20 22:58:10,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:58:10,077 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:58:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10 WrapperNode [2022-09-20 22:58:10,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:58:10,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:58:10,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:58:10,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:58:10,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,130 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2022-09-20 22:58:10,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:58:10,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:58:10,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:58:10,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:58:10,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:58:10,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:58:10,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:58:10,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:58:10,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (1/1) ... [2022-09-20 22:58:10,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:58:10,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:58:10,196 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) [2022-09-20 22:58:10,206 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 [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 22:58:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 22:58:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 22:58:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 22:58:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-20 22:58:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-20 22:58:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-20 22:58:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-20 22:58:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:58:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-09-20 22:58:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-09-20 22:58:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-09-20 22:58:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-09-20 22:58:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:58:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:58:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:58:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:58:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:58:10,231 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:58:10,350 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:58:10,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:58:10,619 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:58:10,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:58:10,666 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:58:10,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:58:10 BoogieIcfgContainer [2022-09-20 22:58:10,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:58:10,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:58:10,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:58:10,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:58:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:58:09" (1/3) ... [2022-09-20 22:58:10,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4263f6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:58:10, skipping insertion in model container [2022-09-20 22:58:10,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:58:10" (2/3) ... [2022-09-20 22:58:10,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4263f6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:58:10, skipping insertion in model container [2022-09-20 22:58:10,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:58:10" (3/3) ... [2022-09-20 22:58:10,681 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-09-20 22:58:10,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:58:10,693 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:58:10,693 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:58:10,799 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-09-20 22:58:10,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2022-09-20 22:58:10,925 INFO L130 PetriNetUnfolder]: 8/207 cut-off events. [2022-09-20 22:58:10,926 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-20 22:58:10,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 241 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-09-20 22:58:10,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 235 transitions, 542 flow [2022-09-20 22:58:10,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 198 transitions, 444 flow [2022-09-20 22:58:10,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:58:10,952 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;@22e141a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:58:10,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-09-20 22:58:10,987 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2022-09-20 22:58:10,988 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-20 22:58:10,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:10,988 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:10,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2011297267, now seen corresponding path program 1 times [2022-09-20 22:58:10,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:10,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544919649] [2022-09-20 22:58:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:10,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:11,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:11,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544919649] [2022-09-20 22:58:11,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544919649] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:11,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:11,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:58:11,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705153162] [2022-09-20 22:58:11,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:11,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:58:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:58:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:58:11,485 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-09-20 22:58:11,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 198 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:11,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:11,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-09-20 22:58:11,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:11,828 INFO L130 PetriNetUnfolder]: 300/1180 cut-off events. [2022-09-20 22:58:11,829 INFO L131 PetriNetUnfolder]: For 362/362 co-relation queries the response was YES. [2022-09-20 22:58:11,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1180 events. 300/1180 cut-off events. For 362/362 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6499 event pairs, 155 based on Foata normal form. 49/1100 useless extension candidates. Maximal degree in co-relation 1815. Up to 289 conditions per place. [2022-09-20 22:58:11,843 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 48 selfloop transitions, 6 changer transitions 3/221 dead transitions. [2022-09-20 22:58:11,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 221 transitions, 663 flow [2022-09-20 22:58:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:58:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:58:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2022-09-20 22:58:11,859 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8811715481171548 [2022-09-20 22:58:11,860 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1053 transitions. [2022-09-20 22:58:11,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1053 transitions. [2022-09-20 22:58:11,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:11,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1053 transitions. [2022-09-20 22:58:11,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.6) internal successors, (1053), 5 states have internal predecessors, (1053), 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) [2022-09-20 22:58:11,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:11,879 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:11,881 INFO L175 Difference]: Start difference. First operand has 209 places, 198 transitions, 444 flow. Second operand 5 states and 1053 transitions. [2022-09-20 22:58:11,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 221 transitions, 663 flow [2022-09-20 22:58:11,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 221 transitions, 589 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-09-20 22:58:11,892 INFO L231 Difference]: Finished difference. Result has 202 places, 191 transitions, 416 flow [2022-09-20 22:58:11,894 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=202, PETRI_TRANSITIONS=191} [2022-09-20 22:58:11,897 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -7 predicate places. [2022-09-20 22:58:11,897 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 191 transitions, 416 flow [2022-09-20 22:58:11,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:11,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:11,898 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:11,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:58:11,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1561900571, now seen corresponding path program 1 times [2022-09-20 22:58:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:11,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062432464] [2022-09-20 22:58:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:12,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:12,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062432464] [2022-09-20 22:58:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062432464] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:12,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:12,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-20 22:58:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945651331] [2022-09-20 22:58:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:12,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-20 22:58:12,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:12,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-20 22:58:12,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-09-20 22:58:12,621 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:12,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 191 transitions, 416 flow. Second operand has 22 states, 22 states have (on average 165.5909090909091) internal successors, (3643), 22 states have internal predecessors, (3643), 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) [2022-09-20 22:58:12,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:12,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:12,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:15,478 INFO L130 PetriNetUnfolder]: 6119/11542 cut-off events. [2022-09-20 22:58:15,478 INFO L131 PetriNetUnfolder]: For 1021/1021 co-relation queries the response was YES. [2022-09-20 22:58:15,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21170 conditions, 11542 events. 6119/11542 cut-off events. For 1021/1021 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 87955 event pairs, 731 based on Foata normal form. 1/10740 useless extension candidates. Maximal degree in co-relation 20275. Up to 5259 conditions per place. [2022-09-20 22:58:15,552 INFO L137 encePairwiseOnDemand]: 214/239 looper letters, 222 selfloop transitions, 117 changer transitions 10/479 dead transitions. [2022-09-20 22:58:15,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 479 transitions, 1763 flow [2022-09-20 22:58:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-20 22:58:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-09-20 22:58:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6218 transitions. [2022-09-20 22:58:15,562 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7226871222687122 [2022-09-20 22:58:15,562 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6218 transitions. [2022-09-20 22:58:15,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6218 transitions. [2022-09-20 22:58:15,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:15,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6218 transitions. [2022-09-20 22:58:15,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 172.72222222222223) internal successors, (6218), 36 states have internal predecessors, (6218), 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) [2022-09-20 22:58:15,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 239.0) internal successors, (8843), 37 states have internal predecessors, (8843), 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) [2022-09-20 22:58:15,585 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 239.0) internal successors, (8843), 37 states have internal predecessors, (8843), 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) [2022-09-20 22:58:15,586 INFO L175 Difference]: Start difference. First operand has 202 places, 191 transitions, 416 flow. Second operand 36 states and 6218 transitions. [2022-09-20 22:58:15,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 479 transitions, 1763 flow [2022-09-20 22:58:15,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 479 transitions, 1745 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:58:15,594 INFO L231 Difference]: Finished difference. Result has 251 places, 306 transitions, 1058 flow [2022-09-20 22:58:15,594 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1058, PETRI_PLACES=251, PETRI_TRANSITIONS=306} [2022-09-20 22:58:15,594 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 42 predicate places. [2022-09-20 22:58:15,594 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 306 transitions, 1058 flow [2022-09-20 22:58:15,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 165.5909090909091) internal successors, (3643), 22 states have internal predecessors, (3643), 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) [2022-09-20 22:58:15,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:15,596 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:15,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:58:15,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:15,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1764491638, now seen corresponding path program 1 times [2022-09-20 22:58:15,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:15,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463153326] [2022-09-20 22:58:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:15,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:15,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:15,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463153326] [2022-09-20 22:58:15,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463153326] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:15,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:15,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:58:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708761000] [2022-09-20 22:58:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:15,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:58:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:15,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:58:15,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:58:15,734 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-09-20 22:58:15,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 306 transitions, 1058 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:15,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:15,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-09-20 22:58:15,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:16,380 INFO L130 PetriNetUnfolder]: 1332/4091 cut-off events. [2022-09-20 22:58:16,381 INFO L131 PetriNetUnfolder]: For 1193/1196 co-relation queries the response was YES. [2022-09-20 22:58:16,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7509 conditions, 4091 events. 1332/4091 cut-off events. For 1193/1196 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 33728 event pairs, 538 based on Foata normal form. 56/3587 useless extension candidates. Maximal degree in co-relation 7480. Up to 1015 conditions per place. [2022-09-20 22:58:16,412 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/331 dead transitions. [2022-09-20 22:58:16,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 331 transitions, 1241 flow [2022-09-20 22:58:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:58:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:58:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-09-20 22:58:16,414 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-09-20 22:58:16,414 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-09-20 22:58:16,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-09-20 22:58:16,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:16,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-09-20 22:58:16,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 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) [2022-09-20 22:58:16,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:16,418 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:16,418 INFO L175 Difference]: Start difference. First operand has 251 places, 306 transitions, 1058 flow. Second operand 5 states and 1046 transitions. [2022-09-20 22:58:16,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 331 transitions, 1241 flow [2022-09-20 22:58:16,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 331 transitions, 1233 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-09-20 22:58:16,433 INFO L231 Difference]: Finished difference. Result has 250 places, 304 transitions, 1060 flow [2022-09-20 22:58:16,433 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1060, PETRI_PLACES=250, PETRI_TRANSITIONS=304} [2022-09-20 22:58:16,434 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 41 predicate places. [2022-09-20 22:58:16,434 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 304 transitions, 1060 flow [2022-09-20 22:58:16,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:16,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:16,435 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:16,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:58:16,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:16,436 INFO L85 PathProgramCache]: Analyzing trace with hash -889123620, now seen corresponding path program 1 times [2022-09-20 22:58:16,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:16,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876582453] [2022-09-20 22:58:16,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:16,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:16,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:16,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876582453] [2022-09-20 22:58:16,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876582453] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:16,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:16,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:58:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398141456] [2022-09-20 22:58:16,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:16,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:58:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:58:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:58:16,555 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-09-20 22:58:16,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 304 transitions, 1060 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:16,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:16,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-09-20 22:58:16,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:16,948 INFO L130 PetriNetUnfolder]: 884/2756 cut-off events. [2022-09-20 22:58:16,949 INFO L131 PetriNetUnfolder]: For 895/917 co-relation queries the response was YES. [2022-09-20 22:58:16,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5247 conditions, 2756 events. 884/2756 cut-off events. For 895/917 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 20423 event pairs, 279 based on Foata normal form. 75/2500 useless extension candidates. Maximal degree in co-relation 5215. Up to 641 conditions per place. [2022-09-20 22:58:16,972 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 50 selfloop transitions, 6 changer transitions 0/255 dead transitions. [2022-09-20 22:58:16,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 255 transitions, 867 flow [2022-09-20 22:58:16,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:58:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:58:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1047 transitions. [2022-09-20 22:58:16,975 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8761506276150628 [2022-09-20 22:58:16,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1047 transitions. [2022-09-20 22:58:16,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1047 transitions. [2022-09-20 22:58:16,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:16,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1047 transitions. [2022-09-20 22:58:16,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 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) [2022-09-20 22:58:16,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:16,978 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:16,979 INFO L175 Difference]: Start difference. First operand has 250 places, 304 transitions, 1060 flow. Second operand 5 states and 1047 transitions. [2022-09-20 22:58:16,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 255 transitions, 867 flow [2022-09-20 22:58:16,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 255 transitions, 828 flow, removed 11 selfloop flow, removed 15 redundant places. [2022-09-20 22:58:16,988 INFO L231 Difference]: Finished difference. Result has 219 places, 227 transitions, 650 flow [2022-09-20 22:58:16,988 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=650, PETRI_PLACES=219, PETRI_TRANSITIONS=227} [2022-09-20 22:58:16,989 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 10 predicate places. [2022-09-20 22:58:16,989 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 227 transitions, 650 flow [2022-09-20 22:58:16,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:16,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:16,990 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:16,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:58:16,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash -871384876, now seen corresponding path program 1 times [2022-09-20 22:58:16,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:16,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115095054] [2022-09-20 22:58:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:16,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:17,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:17,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115095054] [2022-09-20 22:58:17,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115095054] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:17,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:17,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:58:17,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566680347] [2022-09-20 22:58:17,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:17,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:58:17,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:58:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:58:17,069 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-09-20 22:58:17,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 227 transitions, 650 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:17,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:17,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-09-20 22:58:17,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:17,393 INFO L130 PetriNetUnfolder]: 663/2314 cut-off events. [2022-09-20 22:58:17,393 INFO L131 PetriNetUnfolder]: For 454/486 co-relation queries the response was YES. [2022-09-20 22:58:17,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4080 conditions, 2314 events. 663/2314 cut-off events. For 454/486 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 16238 event pairs, 241 based on Foata normal form. 40/2100 useless extension candidates. Maximal degree in co-relation 3532. Up to 555 conditions per place. [2022-09-20 22:58:17,410 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/243 dead transitions. [2022-09-20 22:58:17,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 243 transitions, 794 flow [2022-09-20 22:58:17,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:58:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:58:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-09-20 22:58:17,412 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-09-20 22:58:17,412 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-09-20 22:58:17,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-09-20 22:58:17,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:17,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-09-20 22:58:17,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 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) [2022-09-20 22:58:17,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:17,416 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2022-09-20 22:58:17,416 INFO L175 Difference]: Start difference. First operand has 219 places, 227 transitions, 650 flow. Second operand 5 states and 1046 transitions. [2022-09-20 22:58:17,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 243 transitions, 794 flow [2022-09-20 22:58:17,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 243 transitions, 774 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-09-20 22:58:17,421 INFO L231 Difference]: Finished difference. Result has 216 places, 215 transitions, 592 flow [2022-09-20 22:58:17,421 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=592, PETRI_PLACES=216, PETRI_TRANSITIONS=215} [2022-09-20 22:58:17,422 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 7 predicate places. [2022-09-20 22:58:17,422 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 215 transitions, 592 flow [2022-09-20 22:58:17,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 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) [2022-09-20 22:58:17,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:17,422 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:17,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:58:17,423 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -542860275, now seen corresponding path program 2 times [2022-09-20 22:58:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:17,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081691145] [2022-09-20 22:58:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:17,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081691145] [2022-09-20 22:58:17,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081691145] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:17,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:17,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 22:58:17,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688150654] [2022-09-20 22:58:17,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:17,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 22:58:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:17,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 22:58:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-09-20 22:58:17,994 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:17,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 215 transitions, 592 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:17,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:17,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:17,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:21,489 INFO L130 PetriNetUnfolder]: 4191/8332 cut-off events. [2022-09-20 22:58:21,489 INFO L131 PetriNetUnfolder]: For 3989/3989 co-relation queries the response was YES. [2022-09-20 22:58:21,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19645 conditions, 8332 events. 4191/8332 cut-off events. For 3989/3989 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 59953 event pairs, 577 based on Foata normal form. 1/7800 useless extension candidates. Maximal degree in co-relation 18431. Up to 3148 conditions per place. [2022-09-20 22:58:21,555 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 285 selfloop transitions, 153 changer transitions 31/599 dead transitions. [2022-09-20 22:58:21,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 599 transitions, 2887 flow [2022-09-20 22:58:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-20 22:58:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-09-20 22:58:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 8929 transitions. [2022-09-20 22:58:21,568 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7184583199227551 [2022-09-20 22:58:21,568 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 8929 transitions. [2022-09-20 22:58:21,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 8929 transitions. [2022-09-20 22:58:21,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:21,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 8929 transitions. [2022-09-20 22:58:21,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 171.71153846153845) internal successors, (8929), 52 states have internal predecessors, (8929), 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) [2022-09-20 22:58:21,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:58:21,619 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:58:21,619 INFO L175 Difference]: Start difference. First operand has 216 places, 215 transitions, 592 flow. Second operand 52 states and 8929 transitions. [2022-09-20 22:58:21,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 599 transitions, 2887 flow [2022-09-20 22:58:21,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 599 transitions, 2871 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:58:21,631 INFO L231 Difference]: Finished difference. Result has 281 places, 362 transitions, 1634 flow [2022-09-20 22:58:21,632 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=1634, PETRI_PLACES=281, PETRI_TRANSITIONS=362} [2022-09-20 22:58:21,634 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 72 predicate places. [2022-09-20 22:58:21,634 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 362 transitions, 1634 flow [2022-09-20 22:58:21,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:21,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:21,635 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:21,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:58:21,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1612232212, now seen corresponding path program 2 times [2022-09-20 22:58:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894597747] [2022-09-20 22:58:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:21,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:22,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:22,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894597747] [2022-09-20 22:58:22,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894597747] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:22,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:22,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-20 22:58:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616197908] [2022-09-20 22:58:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:22,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-20 22:58:22,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-20 22:58:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-20 22:58:22,156 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:22,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 362 transitions, 1634 flow. Second operand has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:58:22,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:22,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:22,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:25,938 INFO L130 PetriNetUnfolder]: 5519/10655 cut-off events. [2022-09-20 22:58:25,938 INFO L131 PetriNetUnfolder]: For 14011/14011 co-relation queries the response was YES. [2022-09-20 22:58:25,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31703 conditions, 10655 events. 5519/10655 cut-off events. For 14011/14011 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 78220 event pairs, 907 based on Foata normal form. 1/9908 useless extension candidates. Maximal degree in co-relation 31656. Up to 4264 conditions per place. [2022-09-20 22:58:26,044 INFO L137 encePairwiseOnDemand]: 214/239 looper letters, 456 selfloop transitions, 225 changer transitions 20/831 dead transitions. [2022-09-20 22:58:26,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 831 transitions, 5370 flow [2022-09-20 22:58:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-09-20 22:58:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-09-20 22:58:26,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 10119 transitions. [2022-09-20 22:58:26,055 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7176086802354443 [2022-09-20 22:58:26,055 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 10119 transitions. [2022-09-20 22:58:26,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 10119 transitions. [2022-09-20 22:58:26,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:26,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 10119 transitions. [2022-09-20 22:58:26,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 171.5084745762712) internal successors, (10119), 59 states have internal predecessors, (10119), 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) [2022-09-20 22:58:26,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 239.0) internal successors, (14340), 60 states have internal predecessors, (14340), 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) [2022-09-20 22:58:26,092 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 239.0) internal successors, (14340), 60 states have internal predecessors, (14340), 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) [2022-09-20 22:58:26,092 INFO L175 Difference]: Start difference. First operand has 281 places, 362 transitions, 1634 flow. Second operand 59 states and 10119 transitions. [2022-09-20 22:58:26,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 831 transitions, 5370 flow [2022-09-20 22:58:26,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 831 transitions, 5009 flow, removed 177 selfloop flow, removed 6 redundant places. [2022-09-20 22:58:26,170 INFO L231 Difference]: Finished difference. Result has 349 places, 550 transitions, 3281 flow [2022-09-20 22:58:26,171 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=3281, PETRI_PLACES=349, PETRI_TRANSITIONS=550} [2022-09-20 22:58:26,171 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 140 predicate places. [2022-09-20 22:58:26,171 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 550 transitions, 3281 flow [2022-09-20 22:58:26,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:58:26,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:26,172 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:26,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:58:26,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:26,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:26,173 INFO L85 PathProgramCache]: Analyzing trace with hash 323838591, now seen corresponding path program 1 times [2022-09-20 22:58:26,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:26,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506244693] [2022-09-20 22:58:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:26,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506244693] [2022-09-20 22:58:26,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506244693] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:26,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:26,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 22:58:26,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780718941] [2022-09-20 22:58:26,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:26,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 22:58:26,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:26,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 22:58:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-09-20 22:58:26,728 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:26,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 550 transitions, 3281 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:26,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:26,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:26,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:30,664 INFO L130 PetriNetUnfolder]: 6151/11903 cut-off events. [2022-09-20 22:58:30,664 INFO L131 PetriNetUnfolder]: For 25211/25211 co-relation queries the response was YES. [2022-09-20 22:58:30,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39374 conditions, 11903 events. 6151/11903 cut-off events. For 25211/25211 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 90199 event pairs, 1287 based on Foata normal form. 1/10966 useless extension candidates. Maximal degree in co-relation 39300. Up to 5870 conditions per place. [2022-09-20 22:58:30,828 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 521 selfloop transitions, 237 changer transitions 20/908 dead transitions. [2022-09-20 22:58:30,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 908 transitions, 7079 flow [2022-09-20 22:58:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-20 22:58:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-09-20 22:58:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 9049 transitions. [2022-09-20 22:58:30,994 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7143759374753296 [2022-09-20 22:58:30,994 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 9049 transitions. [2022-09-20 22:58:30,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 9049 transitions. [2022-09-20 22:58:30,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:30,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 9049 transitions. [2022-09-20 22:58:31,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 170.73584905660377) internal successors, (9049), 53 states have internal predecessors, (9049), 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) [2022-09-20 22:58:31,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 239.0) internal successors, (12906), 54 states have internal predecessors, (12906), 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) [2022-09-20 22:58:31,038 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 239.0) internal successors, (12906), 54 states have internal predecessors, (12906), 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) [2022-09-20 22:58:31,039 INFO L175 Difference]: Start difference. First operand has 349 places, 550 transitions, 3281 flow. Second operand 53 states and 9049 transitions. [2022-09-20 22:58:31,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 908 transitions, 7079 flow [2022-09-20 22:58:31,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 908 transitions, 6568 flow, removed 237 selfloop flow, removed 6 redundant places. [2022-09-20 22:58:31,343 INFO L231 Difference]: Finished difference. Result has 408 places, 685 transitions, 4790 flow [2022-09-20 22:58:31,344 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=2867, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=4790, PETRI_PLACES=408, PETRI_TRANSITIONS=685} [2022-09-20 22:58:31,346 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 199 predicate places. [2022-09-20 22:58:31,346 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 685 transitions, 4790 flow [2022-09-20 22:58:31,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:31,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:31,347 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:31,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:58:31,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:31,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2131486541, now seen corresponding path program 2 times [2022-09-20 22:58:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:31,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683447917] [2022-09-20 22:58:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:31,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:31,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:31,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683447917] [2022-09-20 22:58:31,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683447917] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:31,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:31,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-20 22:58:31,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426029428] [2022-09-20 22:58:31,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:31,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-20 22:58:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-20 22:58:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-09-20 22:58:31,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:31,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 685 transitions, 4790 flow. Second operand has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:58:31,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:31,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:31,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:36,307 INFO L130 PetriNetUnfolder]: 7117/14050 cut-off events. [2022-09-20 22:58:36,307 INFO L131 PetriNetUnfolder]: For 40175/40175 co-relation queries the response was YES. [2022-09-20 22:58:36,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49282 conditions, 14050 events. 7117/14050 cut-off events. For 40175/40175 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 113121 event pairs, 1044 based on Foata normal form. 1/12884 useless extension candidates. Maximal degree in co-relation 49184. Up to 6455 conditions per place. [2022-09-20 22:58:36,544 INFO L137 encePairwiseOnDemand]: 214/239 looper letters, 573 selfloop transitions, 365 changer transitions 20/1088 dead transitions. [2022-09-20 22:58:36,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 1088 transitions, 9358 flow [2022-09-20 22:58:36,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-20 22:58:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-09-20 22:58:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 6932 transitions. [2022-09-20 22:58:36,559 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7251046025104603 [2022-09-20 22:58:36,559 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 6932 transitions. [2022-09-20 22:58:36,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 6932 transitions. [2022-09-20 22:58:36,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:36,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 6932 transitions. [2022-09-20 22:58:36,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 173.3) internal successors, (6932), 40 states have internal predecessors, (6932), 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) [2022-09-20 22:58:36,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 239.0) internal successors, (9799), 41 states have internal predecessors, (9799), 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) [2022-09-20 22:58:36,580 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 239.0) internal successors, (9799), 41 states have internal predecessors, (9799), 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) [2022-09-20 22:58:36,580 INFO L175 Difference]: Start difference. First operand has 408 places, 685 transitions, 4790 flow. Second operand 40 states and 6932 transitions. [2022-09-20 22:58:36,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 1088 transitions, 9358 flow [2022-09-20 22:58:36,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 1088 transitions, 8368 flow, removed 465 selfloop flow, removed 7 redundant places. [2022-09-20 22:58:36,853 INFO L231 Difference]: Finished difference. Result has 449 places, 817 transitions, 6382 flow [2022-09-20 22:58:36,854 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=4164, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=6382, PETRI_PLACES=449, PETRI_TRANSITIONS=817} [2022-09-20 22:58:36,855 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 240 predicate places. [2022-09-20 22:58:36,855 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 817 transitions, 6382 flow [2022-09-20 22:58:36,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:58:36,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:36,856 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:36,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 22:58:36,856 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash -208801642, now seen corresponding path program 2 times [2022-09-20 22:58:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:36,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922245023] [2022-09-20 22:58:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:36,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:37,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:37,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922245023] [2022-09-20 22:58:37,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922245023] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:37,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:37,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-09-20 22:58:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490451667] [2022-09-20 22:58:37,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:37,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-09-20 22:58:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:37,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-09-20 22:58:37,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-09-20 22:58:37,472 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-09-20 22:58:37,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 817 transitions, 6382 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 22:58:37,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:37,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-09-20 22:58:37,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:45,866 INFO L130 PetriNetUnfolder]: 9726/19150 cut-off events. [2022-09-20 22:58:45,867 INFO L131 PetriNetUnfolder]: For 72853/72853 co-relation queries the response was YES. [2022-09-20 22:58:46,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73061 conditions, 19150 events. 9726/19150 cut-off events. For 72853/72853 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 158264 event pairs, 1503 based on Foata normal form. 1/17623 useless extension candidates. Maximal degree in co-relation 72942. Up to 8341 conditions per place. [2022-09-20 22:58:46,259 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 889 selfloop transitions, 563 changer transitions 22/1597 dead transitions. [2022-09-20 22:58:46,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1597 transitions, 16484 flow [2022-09-20 22:58:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-09-20 22:58:46,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2022-09-20 22:58:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 15588 transitions. [2022-09-20 22:58:46,273 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6793933054393305 [2022-09-20 22:58:46,273 INFO L72 ComplementDD]: Start complementDD. Operand 96 states and 15588 transitions. [2022-09-20 22:58:46,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 15588 transitions. [2022-09-20 22:58:46,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:46,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 96 states and 15588 transitions. [2022-09-20 22:58:46,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 97 states, 96 states have (on average 162.375) internal successors, (15588), 96 states have internal predecessors, (15588), 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) [2022-09-20 22:58:46,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 97 states, 97 states have (on average 239.0) internal successors, (23183), 97 states have internal predecessors, (23183), 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) [2022-09-20 22:58:46,312 INFO L81 ComplementDD]: Finished complementDD. Result has 97 states, 97 states have (on average 239.0) internal successors, (23183), 97 states have internal predecessors, (23183), 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) [2022-09-20 22:58:46,312 INFO L175 Difference]: Start difference. First operand has 449 places, 817 transitions, 6382 flow. Second operand 96 states and 15588 transitions. [2022-09-20 22:58:46,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1597 transitions, 16484 flow [2022-09-20 22:58:47,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1597 transitions, 15671 flow, removed 234 selfloop flow, removed 11 redundant places. [2022-09-20 22:58:47,071 INFO L231 Difference]: Finished difference. Result has 556 places, 1237 transitions, 12901 flow [2022-09-20 22:58:47,072 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=5943, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=96, PETRI_FLOW=12901, PETRI_PLACES=556, PETRI_TRANSITIONS=1237} [2022-09-20 22:58:47,073 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 347 predicate places. [2022-09-20 22:58:47,073 INFO L495 AbstractCegarLoop]: Abstraction has has 556 places, 1237 transitions, 12901 flow [2022-09-20 22:58:47,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 22:58:47,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:47,074 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:47,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-20 22:58:47,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:47,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1329065118, now seen corresponding path program 1 times [2022-09-20 22:58:47,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:47,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628794341] [2022-09-20 22:58:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:47,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:47,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:47,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628794341] [2022-09-20 22:58:47,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628794341] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:47,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:47,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 22:58:47,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164205624] [2022-09-20 22:58:47,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:47,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 22:58:47,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:47,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 22:58:47,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-09-20 22:58:47,571 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:47,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1237 transitions, 12901 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:47,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:47,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:47,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:58:56,481 INFO L130 PetriNetUnfolder]: 11596/22281 cut-off events. [2022-09-20 22:58:56,482 INFO L131 PetriNetUnfolder]: For 109213/109229 co-relation queries the response was YES. [2022-09-20 22:58:56,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94157 conditions, 22281 events. 11596/22281 cut-off events. For 109213/109229 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 186841 event pairs, 1651 based on Foata normal form. 2/20481 useless extension candidates. Maximal degree in co-relation 94003. Up to 10421 conditions per place. [2022-09-20 22:58:57,023 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 1014 selfloop transitions, 696 changer transitions 20/1863 dead transitions. [2022-09-20 22:58:57,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 1863 transitions, 22487 flow [2022-09-20 22:58:57,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-20 22:58:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2022-09-20 22:58:57,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 11168 transitions. [2022-09-20 22:58:57,033 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7188928226585131 [2022-09-20 22:58:57,033 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 11168 transitions. [2022-09-20 22:58:57,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 11168 transitions. [2022-09-20 22:58:57,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:58:57,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 11168 transitions. [2022-09-20 22:58:57,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 171.8153846153846) internal successors, (11168), 65 states have internal predecessors, (11168), 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) [2022-09-20 22:58:57,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 239.0) internal successors, (15774), 66 states have internal predecessors, (15774), 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) [2022-09-20 22:58:57,065 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 239.0) internal successors, (15774), 66 states have internal predecessors, (15774), 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) [2022-09-20 22:58:57,065 INFO L175 Difference]: Start difference. First operand has 556 places, 1237 transitions, 12901 flow. Second operand 65 states and 11168 transitions. [2022-09-20 22:58:57,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 1863 transitions, 22487 flow [2022-09-20 22:58:58,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 1863 transitions, 20191 flow, removed 1146 selfloop flow, removed 5 redundant places. [2022-09-20 22:58:58,467 INFO L231 Difference]: Finished difference. Result has 635 places, 1528 transitions, 16792 flow [2022-09-20 22:58:58,468 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=10681, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=16792, PETRI_PLACES=635, PETRI_TRANSITIONS=1528} [2022-09-20 22:58:58,469 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 426 predicate places. [2022-09-20 22:58:58,469 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 1528 transitions, 16792 flow [2022-09-20 22:58:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:58,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:58:58,470 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:58:58,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-20 22:58:58,470 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:58:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:58:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2055354922, now seen corresponding path program 1 times [2022-09-20 22:58:58,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:58:58,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7308200] [2022-09-20 22:58:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:58:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:58:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:58:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:58:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:58:58,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7308200] [2022-09-20 22:58:58,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7308200] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:58:58,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:58:58,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 22:58:58,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737499433] [2022-09-20 22:58:58,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:58:58,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 22:58:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:58:58,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 22:58:58,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2022-09-20 22:58:58,908 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:58:58,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 1528 transitions, 16792 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:58:58,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:58:58,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:58:58,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:59:08,845 INFO L130 PetriNetUnfolder]: 12516/24085 cut-off events. [2022-09-20 22:59:08,846 INFO L131 PetriNetUnfolder]: For 171970/171986 co-relation queries the response was YES. [2022-09-20 22:59:09,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108670 conditions, 24085 events. 12516/24085 cut-off events. For 171970/171986 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 205651 event pairs, 2800 based on Foata normal form. 2/22012 useless extension candidates. Maximal degree in co-relation 108483. Up to 12455 conditions per place. [2022-09-20 22:59:09,582 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 1141 selfloop transitions, 643 changer transitions 20/1937 dead transitions. [2022-09-20 22:59:09,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1937 transitions, 24569 flow [2022-09-20 22:59:09,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-20 22:59:09,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-09-20 22:59:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 8920 transitions. [2022-09-20 22:59:09,590 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7177341486964918 [2022-09-20 22:59:09,590 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 8920 transitions. [2022-09-20 22:59:09,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 8920 transitions. [2022-09-20 22:59:09,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:59:09,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 8920 transitions. [2022-09-20 22:59:09,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 171.53846153846155) internal successors, (8920), 52 states have internal predecessors, (8920), 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) [2022-09-20 22:59:09,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:59:09,734 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:59:09,734 INFO L175 Difference]: Start difference. First operand has 635 places, 1528 transitions, 16792 flow. Second operand 52 states and 8920 transitions. [2022-09-20 22:59:09,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 1937 transitions, 24569 flow [2022-09-20 22:59:11,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 1937 transitions, 23508 flow, removed 351 selfloop flow, removed 11 redundant places. [2022-09-20 22:59:11,979 INFO L231 Difference]: Finished difference. Result has 691 places, 1690 transitions, 20283 flow [2022-09-20 22:59:11,980 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=15763, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=995, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=20283, PETRI_PLACES=691, PETRI_TRANSITIONS=1690} [2022-09-20 22:59:11,981 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 482 predicate places. [2022-09-20 22:59:11,981 INFO L495 AbstractCegarLoop]: Abstraction has has 691 places, 1690 transitions, 20283 flow [2022-09-20 22:59:11,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:59:11,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:59:11,982 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:59:11,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-20 22:59:11,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:59:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:59:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash -597011982, now seen corresponding path program 1 times [2022-09-20 22:59:11,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:59:11,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939572217] [2022-09-20 22:59:11,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:59:11,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:59:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:59:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:59:12,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:59:12,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939572217] [2022-09-20 22:59:12,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939572217] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:59:12,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:59:12,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-09-20 22:59:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439915085] [2022-09-20 22:59:12,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:59:12,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-09-20 22:59:12,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:59:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-09-20 22:59:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-09-20 22:59:12,611 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-09-20 22:59:12,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 691 places, 1690 transitions, 20283 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 22:59:12,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:59:12,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-09-20 22:59:12,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:59:26,091 INFO L130 PetriNetUnfolder]: 15721/29518 cut-off events. [2022-09-20 22:59:26,092 INFO L131 PetriNetUnfolder]: For 259667/259667 co-relation queries the response was YES. [2022-09-20 22:59:27,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146624 conditions, 29518 events. 15721/29518 cut-off events. For 259667/259667 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 251546 event pairs, 2759 based on Foata normal form. 1/27065 useless extension candidates. Maximal degree in co-relation 146410. Up to 13827 conditions per place. [2022-09-20 22:59:27,384 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 1392 selfloop transitions, 1204 changer transitions 20/2739 dead transitions. [2022-09-20 22:59:27,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 2739 transitions, 40961 flow [2022-09-20 22:59:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-20 22:59:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-09-20 22:59:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 9522 transitions. [2022-09-20 22:59:27,390 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6869138652431107 [2022-09-20 22:59:27,390 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 9522 transitions. [2022-09-20 22:59:27,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 9522 transitions. [2022-09-20 22:59:27,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:59:27,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 9522 transitions. [2022-09-20 22:59:27,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 164.17241379310346) internal successors, (9522), 58 states have internal predecessors, (9522), 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) [2022-09-20 22:59:27,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 239.0) internal successors, (14101), 59 states have internal predecessors, (14101), 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) [2022-09-20 22:59:27,407 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 239.0) internal successors, (14101), 59 states have internal predecessors, (14101), 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) [2022-09-20 22:59:27,407 INFO L175 Difference]: Start difference. First operand has 691 places, 1690 transitions, 20283 flow. Second operand 58 states and 9522 transitions. [2022-09-20 22:59:27,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 2739 transitions, 40961 flow [2022-09-20 22:59:31,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 737 places, 2739 transitions, 38926 flow, removed 772 selfloop flow, removed 7 redundant places. [2022-09-20 22:59:31,157 INFO L231 Difference]: Finished difference. Result has 769 places, 2412 transitions, 35423 flow [2022-09-20 22:59:31,159 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=19088, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=570, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=35423, PETRI_PLACES=769, PETRI_TRANSITIONS=2412} [2022-09-20 22:59:31,159 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 560 predicate places. [2022-09-20 22:59:31,159 INFO L495 AbstractCegarLoop]: Abstraction has has 769 places, 2412 transitions, 35423 flow [2022-09-20 22:59:31,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 22:59:31,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:59:31,160 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:59:31,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-20 22:59:31,161 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:59:31,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:59:31,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1068713675, now seen corresponding path program 1 times [2022-09-20 22:59:31,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:59:31,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147018379] [2022-09-20 22:59:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:59:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:59:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:59:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:59:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:59:31,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147018379] [2022-09-20 22:59:31,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147018379] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:59:31,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:59:31,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-20 22:59:31,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760600533] [2022-09-20 22:59:31,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:59:31,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-20 22:59:31,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:59:31,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-20 22:59:31,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-09-20 22:59:31,631 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:59:31,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 769 places, 2412 transitions, 35423 flow. Second operand has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:59:31,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:59:31,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:59:31,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:59:48,664 INFO L130 PetriNetUnfolder]: 16314/30670 cut-off events. [2022-09-20 22:59:48,664 INFO L131 PetriNetUnfolder]: For 325396/325418 co-relation queries the response was YES. [2022-09-20 22:59:49,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162168 conditions, 30670 events. 16314/30670 cut-off events. For 325396/325418 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 266603 event pairs, 2518 based on Foata normal form. 8/28083 useless extension candidates. Maximal degree in co-relation 161914. Up to 13208 conditions per place. [2022-09-20 22:59:50,154 INFO L137 encePairwiseOnDemand]: 214/239 looper letters, 1090 selfloop transitions, 1704 changer transitions 20/2951 dead transitions. [2022-09-20 22:59:50,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 2951 transitions, 47418 flow [2022-09-20 22:59:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-20 22:59:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-09-20 22:59:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 8960 transitions. [2022-09-20 22:59:50,159 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7209526874798842 [2022-09-20 22:59:50,160 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 8960 transitions. [2022-09-20 22:59:50,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 8960 transitions. [2022-09-20 22:59:50,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:59:50,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 8960 transitions. [2022-09-20 22:59:50,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 172.30769230769232) internal successors, (8960), 52 states have internal predecessors, (8960), 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) [2022-09-20 22:59:50,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:59:50,175 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 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) [2022-09-20 22:59:50,175 INFO L175 Difference]: Start difference. First operand has 769 places, 2412 transitions, 35423 flow. Second operand 52 states and 8960 transitions. [2022-09-20 22:59:50,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 2951 transitions, 47418 flow [2022-09-20 22:59:55,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 811 places, 2951 transitions, 46036 flow, removed 689 selfloop flow, removed 5 redundant places. [2022-09-20 22:59:55,498 INFO L231 Difference]: Finished difference. Result has 826 places, 2641 transitions, 42650 flow [2022-09-20 22:59:55,501 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=34227, PETRI_DIFFERENCE_MINUEND_PLACES=760, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=42650, PETRI_PLACES=826, PETRI_TRANSITIONS=2641} [2022-09-20 22:59:55,502 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 617 predicate places. [2022-09-20 22:59:55,502 INFO L495 AbstractCegarLoop]: Abstraction has has 826 places, 2641 transitions, 42650 flow [2022-09-20 22:59:55,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 165.28) internal successors, (4132), 25 states have internal predecessors, (4132), 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) [2022-09-20 22:59:55,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:59:55,502 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:59:55,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-20 22:59:55,503 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 22:59:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:59:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2103879802, now seen corresponding path program 2 times [2022-09-20 22:59:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:59:55,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968616356] [2022-09-20 22:59:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:59:55,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:59:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:59:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:59:55,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:59:55,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968616356] [2022-09-20 22:59:55,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968616356] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:59:55,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:59:55,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 22:59:55,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738765452] [2022-09-20 22:59:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:59:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 22:59:55,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:59:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 22:59:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-09-20 22:59:55,967 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 22:59:55,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 2641 transitions, 42650 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 22:59:55,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:59:55,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 22:59:55,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:00:15,065 INFO L130 PetriNetUnfolder]: 17697/33355 cut-off events. [2022-09-20 23:00:15,065 INFO L131 PetriNetUnfolder]: For 431947/431990 co-relation queries the response was YES. [2022-09-20 23:00:16,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189993 conditions, 33355 events. 17697/33355 cut-off events. For 431947/431990 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 294850 event pairs, 2948 based on Foata normal form. 18/30479 useless extension candidates. Maximal degree in co-relation 189716. Up to 15651 conditions per place. [2022-09-20 23:00:16,931 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 1877 selfloop transitions, 1240 changer transitions 20/3274 dead transitions. [2022-09-20 23:00:16,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 867 places, 3274 transitions, 60428 flow [2022-09-20 23:00:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-20 23:00:16,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-09-20 23:00:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7891 transitions. [2022-09-20 23:00:16,935 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7177551391668182 [2022-09-20 23:00:16,935 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7891 transitions. [2022-09-20 23:00:16,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7891 transitions. [2022-09-20 23:00:16,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:00:16,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7891 transitions. [2022-09-20 23:00:16,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 171.54347826086956) internal successors, (7891), 46 states have internal predecessors, (7891), 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) [2022-09-20 23:00:16,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 239.0) internal successors, (11233), 47 states have internal predecessors, (11233), 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) [2022-09-20 23:00:16,948 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 239.0) internal successors, (11233), 47 states have internal predecessors, (11233), 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) [2022-09-20 23:00:16,948 INFO L175 Difference]: Start difference. First operand has 826 places, 2641 transitions, 42650 flow. Second operand 46 states and 7891 transitions. [2022-09-20 23:00:16,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 867 places, 3274 transitions, 60428 flow [2022-09-20 23:00:26,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 848 places, 3274 transitions, 57282 flow, removed 586 selfloop flow, removed 19 redundant places. [2022-09-20 23:00:26,201 INFO L231 Difference]: Finished difference. Result has 863 places, 2986 transitions, 51280 flow [2022-09-20 23:00:26,203 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=40065, PETRI_DIFFERENCE_MINUEND_PLACES=803, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=913, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=51280, PETRI_PLACES=863, PETRI_TRANSITIONS=2986} [2022-09-20 23:00:26,203 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 654 predicate places. [2022-09-20 23:00:26,204 INFO L495 AbstractCegarLoop]: Abstraction has has 863 places, 2986 transitions, 51280 flow [2022-09-20 23:00:26,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 23:00:26,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:00:26,204 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:00:26,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-20 23:00:26,204 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 23:00:26,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:00:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1085170783, now seen corresponding path program 3 times [2022-09-20 23:00:26,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:00:26,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233592082] [2022-09-20 23:00:26,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:00:26,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:00:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:00:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:00:26,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:00:26,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233592082] [2022-09-20 23:00:26,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233592082] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:00:26,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:00:26,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-09-20 23:00:26,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286013559] [2022-09-20 23:00:26,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:00:26,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-09-20 23:00:26,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:00:26,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-09-20 23:00:26,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2022-09-20 23:00:26,886 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-09-20 23:00:26,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 863 places, 2986 transitions, 51280 flow. Second operand has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 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) [2022-09-20 23:00:26,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:00:26,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-09-20 23:00:26,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:00:56,276 INFO L130 PetriNetUnfolder]: 20201/37794 cut-off events. [2022-09-20 23:00:56,277 INFO L131 PetriNetUnfolder]: For 493811/493827 co-relation queries the response was YES. [2022-09-20 23:00:57,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222339 conditions, 37794 events. 20201/37794 cut-off events. For 493811/493827 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 335437 event pairs, 3503 based on Foata normal form. 6/34656 useless extension candidates. Maximal degree in co-relation 222039. Up to 16478 conditions per place. [2022-09-20 23:00:58,599 INFO L137 encePairwiseOnDemand]: 213/239 looper letters, 1874 selfloop transitions, 2040 changer transitions 20/4064 dead transitions. [2022-09-20 23:00:58,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 966 places, 4064 transitions, 77733 flow [2022-09-20 23:00:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-09-20 23:00:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2022-09-20 23:00:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 17917 transitions. [2022-09-20 23:00:58,619 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6941345110801178 [2022-09-20 23:00:58,619 INFO L72 ComplementDD]: Start complementDD. Operand 108 states and 17917 transitions. [2022-09-20 23:00:58,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 17917 transitions. [2022-09-20 23:00:58,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:00:58,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 108 states and 17917 transitions. [2022-09-20 23:00:58,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 109 states, 108 states have (on average 165.89814814814815) internal successors, (17917), 108 states have internal predecessors, (17917), 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) [2022-09-20 23:00:58,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 109 states, 109 states have (on average 239.0) internal successors, (26051), 109 states have internal predecessors, (26051), 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) [2022-09-20 23:00:58,654 INFO L81 ComplementDD]: Finished complementDD. Result has 109 states, 109 states have (on average 239.0) internal successors, (26051), 109 states have internal predecessors, (26051), 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) [2022-09-20 23:00:58,654 INFO L175 Difference]: Start difference. First operand has 863 places, 2986 transitions, 51280 flow. Second operand 108 states and 17917 transitions. [2022-09-20 23:00:58,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 966 places, 4064 transitions, 77733 flow [2022-09-20 23:01:09,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 4064 transitions, 76649 flow, removed 457 selfloop flow, removed 6 redundant places. [2022-09-20 23:01:09,154 INFO L231 Difference]: Finished difference. Result has 989 places, 3721 transitions, 73295 flow [2022-09-20 23:01:09,156 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=50285, PETRI_DIFFERENCE_MINUEND_PLACES=853, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=108, PETRI_FLOW=73295, PETRI_PLACES=989, PETRI_TRANSITIONS=3721} [2022-09-20 23:01:09,157 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 780 predicate places. [2022-09-20 23:01:09,157 INFO L495 AbstractCegarLoop]: Abstraction has has 989 places, 3721 transitions, 73295 flow [2022-09-20 23:01:09,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 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) [2022-09-20 23:01:09,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:09,158 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-20 23:01:09,158 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 23:01:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash -653749463, now seen corresponding path program 1 times [2022-09-20 23:01:09,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:09,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153526989] [2022-09-20 23:01:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:09,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:09,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153526989] [2022-09-20 23:01:09,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153526989] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:09,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:09,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-09-20 23:01:09,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111808483] [2022-09-20 23:01:09,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:09,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-09-20 23:01:09,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-09-20 23:01:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2022-09-20 23:01:09,819 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-09-20 23:01:09,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 989 places, 3721 transitions, 73295 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 23:01:09,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:09,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-09-20 23:01:09,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:45,851 INFO L130 PetriNetUnfolder]: 22728/42515 cut-off events. [2022-09-20 23:01:45,851 INFO L131 PetriNetUnfolder]: For 650833/650833 co-relation queries the response was YES. [2022-09-20 23:01:48,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265195 conditions, 42515 events. 22728/42515 cut-off events. For 650833/650833 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 381660 event pairs, 3604 based on Foata normal form. 1/39151 useless extension candidates. Maximal degree in co-relation 264858. Up to 19237 conditions per place. [2022-09-20 23:01:48,836 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 2299 selfloop transitions, 2151 changer transitions 20/4593 dead transitions. [2022-09-20 23:01:48,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 4593 transitions, 95882 flow [2022-09-20 23:01:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-09-20 23:01:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-09-20 23:01:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 9375 transitions. [2022-09-20 23:01:48,841 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6881744109227043 [2022-09-20 23:01:48,841 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 9375 transitions. [2022-09-20 23:01:48,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 9375 transitions. [2022-09-20 23:01:48,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:48,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 9375 transitions. [2022-09-20 23:01:48,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 164.47368421052633) internal successors, (9375), 57 states have internal predecessors, (9375), 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) [2022-09-20 23:01:48,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 239.0) internal successors, (13862), 58 states have internal predecessors, (13862), 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) [2022-09-20 23:01:48,856 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 239.0) internal successors, (13862), 58 states have internal predecessors, (13862), 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) [2022-09-20 23:01:48,856 INFO L175 Difference]: Start difference. First operand has 989 places, 3721 transitions, 73295 flow. Second operand 57 states and 9375 transitions. [2022-09-20 23:01:48,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1041 places, 4593 transitions, 95882 flow [2022-09-20 23:02:06,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1036 places, 4593 transitions, 90390 flow, removed 2744 selfloop flow, removed 5 redundant places. [2022-09-20 23:02:06,346 INFO L231 Difference]: Finished difference. Result has 1069 places, 4274 transitions, 86097 flow [2022-09-20 23:02:06,348 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=67829, PETRI_DIFFERENCE_MINUEND_PLACES=980, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1687, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=86097, PETRI_PLACES=1069, PETRI_TRANSITIONS=4274} [2022-09-20 23:02:06,348 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 860 predicate places. [2022-09-20 23:02:06,349 INFO L495 AbstractCegarLoop]: Abstraction has has 1069 places, 4274 transitions, 86097 flow [2022-09-20 23:02:06,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 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) [2022-09-20 23:02:06,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:02:06,349 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:02:06,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-20 23:02:06,350 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-09-20 23:02:06,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:02:06,350 INFO L85 PathProgramCache]: Analyzing trace with hash 301726565, now seen corresponding path program 2 times [2022-09-20 23:02:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:02:06,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452248842] [2022-09-20 23:02:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:02:06,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:02:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:02:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:02:06,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:02:06,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452248842] [2022-09-20 23:02:06,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452248842] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:02:06,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:02:06,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-20 23:02:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763543294] [2022-09-20 23:02:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:02:06,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-20 23:02:06,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:02:06,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-20 23:02:06,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2022-09-20 23:02:06,784 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-09-20 23:02:06,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1069 places, 4274 transitions, 86097 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 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) [2022-09-20 23:02:06,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:02:06,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-09-20 23:02:06,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand