/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 03:42:04,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 03:42:04,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 03:42:04,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 03:42:04,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 03:42:04,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 03:42:04,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 03:42:04,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 03:42:04,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 03:42:04,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 03:42:04,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 03:42:04,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 03:42:04,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 03:42:04,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 03:42:04,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 03:42:04,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 03:42:04,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 03:42:04,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 03:42:04,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 03:42:04,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 03:42:04,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 03:42:04,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 03:42:04,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 03:42:04,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 03:42:04,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 03:42:04,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 03:42:04,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 03:42:04,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 03:42:04,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 03:42:04,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 03:42:04,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 03:42:04,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 03:42:04,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 03:42:04,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 03:42:04,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 03:42:04,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 03:42:04,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 03:42:04,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 03:42:04,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 03:42:04,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 03:42:04,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 03:42:04,145 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-VariableLbe.epf [2023-01-28 03:42:04,170 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 03:42:04,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 03:42:04,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 03:42:04,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 03:42:04,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 03:42:04,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 03:42:04,172 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 03:42:04,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 03:42:04,172 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 03:42:04,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 03:42:04,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 03:42:04,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 03:42:04,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 03:42:04,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 03:42:04,175 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 03:42:04,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 03:42:04,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 03:42:04,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 03:42:04,372 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 03:42:04,372 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 03:42:04,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-01-28 03:42:05,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 03:42:05,431 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 03:42:05,431 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-01-28 03:42:05,436 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9029ffeee/f151b7ac812948aa8dd26ec8d0cea8b2/FLAGd7ffb21c3 [2023-01-28 03:42:05,833 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9029ffeee/f151b7ac812948aa8dd26ec8d0cea8b2 [2023-01-28 03:42:05,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 03:42:05,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 03:42:05,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 03:42:05,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 03:42:05,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 03:42:05,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 03:42:05" (1/1) ... [2023-01-28 03:42:05,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea20c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:05, skipping insertion in model container [2023-01-28 03:42:05,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 03:42:05" (1/1) ... [2023-01-28 03:42:05,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 03:42:05,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 03:42:06,003 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-01-28 03:42:06,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 03:42:06,013 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 03:42:06,032 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-01-28 03:42:06,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 03:42:06,038 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 03:42:06,038 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 03:42:06,042 INFO L208 MainTranslator]: Completed translation [2023-01-28 03:42:06,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06 WrapperNode [2023-01-28 03:42:06,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 03:42:06,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 03:42:06,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 03:42:06,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 03:42:06,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,071 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 247 [2023-01-28 03:42:06,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 03:42:06,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 03:42:06,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 03:42:06,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 03:42:06,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,086 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 03:42:06,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 03:42:06,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 03:42:06,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 03:42:06,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (1/1) ... [2023-01-28 03:42:06,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 03:42:06,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 03:42:06,146 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) [2023-01-28 03:42:06,148 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 [2023-01-28 03:42:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 03:42:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 03:42:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 03:42:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-28 03:42:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-01-28 03:42:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-01-28 03:42:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 03:42:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 03:42:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 03:42:06,172 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 03:42:06,239 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 03:42:06,240 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 03:42:06,504 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 03:42:06,553 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 03:42:06,553 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 03:42:06,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:42:06 BoogieIcfgContainer [2023-01-28 03:42:06,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 03:42:06,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 03:42:06,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 03:42:06,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 03:42:06,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 03:42:05" (1/3) ... [2023-01-28 03:42:06,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f72ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 03:42:06, skipping insertion in model container [2023-01-28 03:42:06,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:42:06" (2/3) ... [2023-01-28 03:42:06,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f72ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 03:42:06, skipping insertion in model container [2023-01-28 03:42:06,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:42:06" (3/3) ... [2023-01-28 03:42:06,560 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-01-28 03:42:06,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 03:42:06,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 03:42:06,570 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 03:42:06,632 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-01-28 03:42:06,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 167 transitions, 374 flow [2023-01-28 03:42:06,737 INFO L130 PetriNetUnfolder]: 2/162 cut-off events. [2023-01-28 03:42:06,738 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 03:42:06,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 162 events. 2/162 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2023-01-28 03:42:06,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 167 transitions, 374 flow [2023-01-28 03:42:06,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 148 transitions, 326 flow [2023-01-28 03:42:06,751 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 03:42:06,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 148 transitions, 326 flow [2023-01-28 03:42:06,764 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 148 transitions, 326 flow [2023-01-28 03:42:06,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 148 transitions, 326 flow [2023-01-28 03:42:06,789 INFO L130 PetriNetUnfolder]: 2/148 cut-off events. [2023-01-28 03:42:06,789 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 03:42:06,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 148 events. 2/148 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2023-01-28 03:42:06,791 INFO L119 LiptonReduction]: Number of co-enabled transitions 2082 [2023-01-28 03:42:10,604 INFO L134 LiptonReduction]: Checked pairs total: 10775 [2023-01-28 03:42:10,604 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-01-28 03:42:10,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 03:42:10,617 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;@5566f1bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 03:42:10,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-28 03:42:10,624 INFO L130 PetriNetUnfolder]: 0/41 cut-off events. [2023-01-28 03:42:10,624 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 03:42:10,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:10,625 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] [2023-01-28 03:42:10,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:10,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1886582129, now seen corresponding path program 1 times [2023-01-28 03:42:10,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:10,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125132187] [2023-01-28 03:42:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:10,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:11,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125132187] [2023-01-28 03:42:11,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125132187] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:11,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:11,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 03:42:11,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136288776] [2023-01-28 03:42:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:11,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:42:11,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:11,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:42:11,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:42:11,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 281 [2023-01-28 03:42:11,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 114 flow. Second operand has 8 states, 8 states have (on average 126.25) internal successors, (1010), 8 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:11,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:11,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 281 [2023-01-28 03:42:11,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:16,421 INFO L130 PetriNetUnfolder]: 64349/83635 cut-off events. [2023-01-28 03:42:16,422 INFO L131 PetriNetUnfolder]: For 5019/5019 co-relation queries the response was YES. [2023-01-28 03:42:16,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171328 conditions, 83635 events. 64349/83635 cut-off events. For 5019/5019 co-relation queries the response was YES. Maximal size of possible extension queue 2027. Compared 448494 event pairs, 14972 based on Foata normal form. 1/83636 useless extension candidates. Maximal degree in co-relation 170159. Up to 35393 conditions per place. [2023-01-28 03:42:16,688 INFO L137 encePairwiseOnDemand]: 268/281 looper letters, 153 selfloop transitions, 26 changer transitions 15/194 dead transitions. [2023-01-28 03:42:16,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 194 transitions, 875 flow [2023-01-28 03:42:16,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 03:42:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 03:42:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2023-01-28 03:42:16,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5077105575326216 [2023-01-28 03:42:16,700 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1284 transitions. [2023-01-28 03:42:16,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1284 transitions. [2023-01-28 03:42:16,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:16,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1284 transitions. [2023-01-28 03:42:16,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.66666666666666) internal successors, (1284), 9 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:16,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:16,714 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:16,715 INFO L175 Difference]: Start difference. First operand has 58 places, 42 transitions, 114 flow. Second operand 9 states and 1284 transitions. [2023-01-28 03:42:16,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 194 transitions, 875 flow [2023-01-28 03:42:16,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 194 transitions, 809 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-01-28 03:42:16,841 INFO L231 Difference]: Finished difference. Result has 60 places, 74 transitions, 273 flow [2023-01-28 03:42:16,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=273, PETRI_PLACES=60, PETRI_TRANSITIONS=74} [2023-01-28 03:42:16,844 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2023-01-28 03:42:16,844 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 74 transitions, 273 flow [2023-01-28 03:42:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 126.25) internal successors, (1010), 8 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:16,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:16,845 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] [2023-01-28 03:42:16,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 03:42:16,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:16,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:16,846 INFO L85 PathProgramCache]: Analyzing trace with hash -169135167, now seen corresponding path program 2 times [2023-01-28 03:42:16,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:16,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123982904] [2023-01-28 03:42:16,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:16,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:17,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:17,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123982904] [2023-01-28 03:42:17,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123982904] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:17,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:17,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:42:17,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519294257] [2023-01-28 03:42:17,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:17,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:42:17,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:42:17,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:42:17,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:17,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 74 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:17,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:17,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:17,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:19,231 INFO L130 PetriNetUnfolder]: 22462/32041 cut-off events. [2023-01-28 03:42:19,232 INFO L131 PetriNetUnfolder]: For 6920/7024 co-relation queries the response was YES. [2023-01-28 03:42:19,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72603 conditions, 32041 events. 22462/32041 cut-off events. For 6920/7024 co-relation queries the response was YES. Maximal size of possible extension queue 1524. Compared 206335 event pairs, 3182 based on Foata normal form. 472/30857 useless extension candidates. Maximal degree in co-relation 50401. Up to 22809 conditions per place. [2023-01-28 03:42:19,385 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 101 selfloop transitions, 25 changer transitions 0/158 dead transitions. [2023-01-28 03:42:19,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 158 transitions, 738 flow [2023-01-28 03:42:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 03:42:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 03:42:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1038 transitions. [2023-01-28 03:42:19,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277071682765633 [2023-01-28 03:42:19,388 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1038 transitions. [2023-01-28 03:42:19,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1038 transitions. [2023-01-28 03:42:19,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:19,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1038 transitions. [2023-01-28 03:42:19,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:19,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:19,394 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:19,395 INFO L175 Difference]: Start difference. First operand has 60 places, 74 transitions, 273 flow. Second operand 7 states and 1038 transitions. [2023-01-28 03:42:19,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 158 transitions, 738 flow [2023-01-28 03:42:19,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 158 transitions, 731 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 03:42:19,535 INFO L231 Difference]: Finished difference. Result has 68 places, 92 transitions, 390 flow [2023-01-28 03:42:19,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=390, PETRI_PLACES=68, PETRI_TRANSITIONS=92} [2023-01-28 03:42:19,536 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2023-01-28 03:42:19,536 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 92 transitions, 390 flow [2023-01-28 03:42:19,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:19,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:19,537 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] [2023-01-28 03:42:19,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 03:42:19,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:19,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:19,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1209127043, now seen corresponding path program 3 times [2023-01-28 03:42:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882399758] [2023-01-28 03:42:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:19,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882399758] [2023-01-28 03:42:19,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882399758] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:19,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:42:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442972757] [2023-01-28 03:42:19,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:19,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:42:19,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:19,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:42:19,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:42:19,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:19,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 92 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:19,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:19,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:19,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:21,330 INFO L130 PetriNetUnfolder]: 19232/28041 cut-off events. [2023-01-28 03:42:21,331 INFO L131 PetriNetUnfolder]: For 17437/18411 co-relation queries the response was YES. [2023-01-28 03:42:21,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77155 conditions, 28041 events. 19232/28041 cut-off events. For 17437/18411 co-relation queries the response was YES. Maximal size of possible extension queue 1177. Compared 184532 event pairs, 3723 based on Foata normal form. 896/27579 useless extension candidates. Maximal degree in co-relation 50573. Up to 19959 conditions per place. [2023-01-28 03:42:21,463 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 97 selfloop transitions, 36 changer transitions 0/164 dead transitions. [2023-01-28 03:42:21,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 164 transitions, 886 flow [2023-01-28 03:42:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 03:42:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 03:42:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1032 transitions. [2023-01-28 03:42:21,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246568378240977 [2023-01-28 03:42:21,466 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1032 transitions. [2023-01-28 03:42:21,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1032 transitions. [2023-01-28 03:42:21,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:21,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1032 transitions. [2023-01-28 03:42:21,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 147.42857142857142) internal successors, (1032), 7 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:21,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:21,471 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:21,471 INFO L175 Difference]: Start difference. First operand has 68 places, 92 transitions, 390 flow. Second operand 7 states and 1032 transitions. [2023-01-28 03:42:21,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 164 transitions, 886 flow [2023-01-28 03:42:21,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 164 transitions, 880 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 03:42:21,585 INFO L231 Difference]: Finished difference. Result has 75 places, 104 transitions, 534 flow [2023-01-28 03:42:21,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=534, PETRI_PLACES=75, PETRI_TRANSITIONS=104} [2023-01-28 03:42:21,586 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2023-01-28 03:42:21,589 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 104 transitions, 534 flow [2023-01-28 03:42:21,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:21,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:21,589 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] [2023-01-28 03:42:21,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 03:42:21,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:21,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:21,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1580156935, now seen corresponding path program 4 times [2023-01-28 03:42:21,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:21,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895133940] [2023-01-28 03:42:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:21,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:21,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:21,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895133940] [2023-01-28 03:42:21,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895133940] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:21,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:21,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 03:42:21,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401992635] [2023-01-28 03:42:21,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:21,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 03:42:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 03:42:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 03:42:21,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:21,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 104 transitions, 534 flow. Second operand has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:21,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:21,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:21,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:25,614 INFO L130 PetriNetUnfolder]: 43502/65145 cut-off events. [2023-01-28 03:42:25,614 INFO L131 PetriNetUnfolder]: For 57077/57949 co-relation queries the response was YES. [2023-01-28 03:42:25,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186197 conditions, 65145 events. 43502/65145 cut-off events. For 57077/57949 co-relation queries the response was YES. Maximal size of possible extension queue 3147. Compared 507173 event pairs, 6834 based on Foata normal form. 868/63085 useless extension candidates. Maximal degree in co-relation 111031. Up to 19576 conditions per place. [2023-01-28 03:42:25,951 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 134 selfloop transitions, 85 changer transitions 0/250 dead transitions. [2023-01-28 03:42:25,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 250 transitions, 1560 flow [2023-01-28 03:42:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 03:42:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 03:42:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1338 transitions. [2023-01-28 03:42:25,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290628706998813 [2023-01-28 03:42:25,954 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1338 transitions. [2023-01-28 03:42:25,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1338 transitions. [2023-01-28 03:42:25,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:25,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1338 transitions. [2023-01-28 03:42:25,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 148.66666666666666) internal successors, (1338), 9 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:25,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:25,959 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:25,959 INFO L175 Difference]: Start difference. First operand has 75 places, 104 transitions, 534 flow. Second operand 9 states and 1338 transitions. [2023-01-28 03:42:25,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 250 transitions, 1560 flow [2023-01-28 03:42:27,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 250 transitions, 1554 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 03:42:27,146 INFO L231 Difference]: Finished difference. Result has 86 places, 155 transitions, 1138 flow [2023-01-28 03:42:27,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1138, PETRI_PLACES=86, PETRI_TRANSITIONS=155} [2023-01-28 03:42:27,147 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 28 predicate places. [2023-01-28 03:42:27,147 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 155 transitions, 1138 flow [2023-01-28 03:42:27,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:27,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:27,148 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] [2023-01-28 03:42:27,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 03:42:27,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:27,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:27,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1901603651, now seen corresponding path program 5 times [2023-01-28 03:42:27,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:27,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859602045] [2023-01-28 03:42:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:27,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:27,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:27,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859602045] [2023-01-28 03:42:27,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859602045] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:27,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:27,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 03:42:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308285186] [2023-01-28 03:42:27,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:27,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:42:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:42:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:42:27,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:27,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 155 transitions, 1138 flow. Second operand has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:27,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:27,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:27,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:33,305 INFO L130 PetriNetUnfolder]: 53657/81911 cut-off events. [2023-01-28 03:42:33,305 INFO L131 PetriNetUnfolder]: For 163467/170473 co-relation queries the response was YES. [2023-01-28 03:42:33,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286265 conditions, 81911 events. 53657/81911 cut-off events. For 163467/170473 co-relation queries the response was YES. Maximal size of possible extension queue 4020. Compared 678860 event pairs, 9236 based on Foata normal form. 1728/80203 useless extension candidates. Maximal degree in co-relation 160961. Up to 22391 conditions per place. [2023-01-28 03:42:33,836 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 145 selfloop transitions, 178 changer transitions 3/357 dead transitions. [2023-01-28 03:42:33,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 357 transitions, 2957 flow [2023-01-28 03:42:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 03:42:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 03:42:33,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1631 transitions. [2023-01-28 03:42:33,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276609511484956 [2023-01-28 03:42:33,840 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1631 transitions. [2023-01-28 03:42:33,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1631 transitions. [2023-01-28 03:42:33,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:33,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1631 transitions. [2023-01-28 03:42:33,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 148.27272727272728) internal successors, (1631), 11 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:33,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:33,845 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:33,846 INFO L175 Difference]: Start difference. First operand has 86 places, 155 transitions, 1138 flow. Second operand 11 states and 1631 transitions. [2023-01-28 03:42:33,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 357 transitions, 2957 flow [2023-01-28 03:42:36,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 357 transitions, 2911 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-01-28 03:42:36,173 INFO L231 Difference]: Finished difference. Result has 100 places, 250 transitions, 2543 flow [2023-01-28 03:42:36,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2543, PETRI_PLACES=100, PETRI_TRANSITIONS=250} [2023-01-28 03:42:36,173 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 42 predicate places. [2023-01-28 03:42:36,174 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 250 transitions, 2543 flow [2023-01-28 03:42:36,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:36,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:36,174 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] [2023-01-28 03:42:36,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 03:42:36,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:36,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash 480139849, now seen corresponding path program 6 times [2023-01-28 03:42:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:36,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687531989] [2023-01-28 03:42:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:36,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:36,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687531989] [2023-01-28 03:42:36,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687531989] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:36,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:36,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 03:42:36,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976796796] [2023-01-28 03:42:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:36,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 03:42:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:36,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 03:42:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-01-28 03:42:36,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:36,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 250 transitions, 2543 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:36,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:36,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:36,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:43,406 INFO L130 PetriNetUnfolder]: 52963/80980 cut-off events. [2023-01-28 03:42:43,406 INFO L131 PetriNetUnfolder]: For 327024/341072 co-relation queries the response was YES. [2023-01-28 03:42:43,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344916 conditions, 80980 events. 52963/80980 cut-off events. For 327024/341072 co-relation queries the response was YES. Maximal size of possible extension queue 4072. Compared 667582 event pairs, 15921 based on Foata normal form. 4340/82124 useless extension candidates. Maximal degree in co-relation 264833. Up to 58116 conditions per place. [2023-01-28 03:42:44,167 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 266 selfloop transitions, 184 changer transitions 16/495 dead transitions. [2023-01-28 03:42:44,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 495 transitions, 5235 flow [2023-01-28 03:42:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-28 03:42:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-01-28 03:42:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2759 transitions. [2023-01-28 03:42:44,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5167634388462259 [2023-01-28 03:42:44,173 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2759 transitions. [2023-01-28 03:42:44,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2759 transitions. [2023-01-28 03:42:44,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:44,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2759 transitions. [2023-01-28 03:42:44,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 145.21052631578948) internal successors, (2759), 19 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:44,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 281.0) internal successors, (5620), 20 states have internal predecessors, (5620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:44,183 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 281.0) internal successors, (5620), 20 states have internal predecessors, (5620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:44,183 INFO L175 Difference]: Start difference. First operand has 100 places, 250 transitions, 2543 flow. Second operand 19 states and 2759 transitions. [2023-01-28 03:42:44,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 495 transitions, 5235 flow [2023-01-28 03:42:46,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 495 transitions, 5102 flow, removed 61 selfloop flow, removed 2 redundant places. [2023-01-28 03:42:46,995 INFO L231 Difference]: Finished difference. Result has 125 places, 321 transitions, 3939 flow [2023-01-28 03:42:46,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=2295, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3939, PETRI_PLACES=125, PETRI_TRANSITIONS=321} [2023-01-28 03:42:46,996 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 67 predicate places. [2023-01-28 03:42:46,996 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 321 transitions, 3939 flow [2023-01-28 03:42:46,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:46,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:42:46,997 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] [2023-01-28 03:42:46,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 03:42:46,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:42:46,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:42:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -72860955, now seen corresponding path program 7 times [2023-01-28 03:42:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:42:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211188697] [2023-01-28 03:42:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:42:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:42:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:42:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:42:47,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:42:47,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211188697] [2023-01-28 03:42:47,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211188697] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:42:47,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:42:47,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 03:42:47,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420519324] [2023-01-28 03:42:47,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:42:47,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 03:42:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:42:47,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 03:42:47,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 03:42:47,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:42:47,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 321 transitions, 3939 flow. Second operand has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:47,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:42:47,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:42:47,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:42:54,766 INFO L130 PetriNetUnfolder]: 52693/80659 cut-off events. [2023-01-28 03:42:54,766 INFO L131 PetriNetUnfolder]: For 470916/484287 co-relation queries the response was YES. [2023-01-28 03:42:55,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373274 conditions, 80659 events. 52693/80659 cut-off events. For 470916/484287 co-relation queries the response was YES. Maximal size of possible extension queue 4008. Compared 664669 event pairs, 16059 based on Foata normal form. 1300/78809 useless extension candidates. Maximal degree in co-relation 296902. Up to 62649 conditions per place. [2023-01-28 03:42:55,494 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 200 selfloop transitions, 159 changer transitions 16/404 dead transitions. [2023-01-28 03:42:55,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 404 transitions, 5302 flow [2023-01-28 03:42:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 03:42:55,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 03:42:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1309 transitions. [2023-01-28 03:42:55,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5175958877026493 [2023-01-28 03:42:55,497 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1309 transitions. [2023-01-28 03:42:55,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1309 transitions. [2023-01-28 03:42:55,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:42:55,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1309 transitions. [2023-01-28 03:42:55,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 145.44444444444446) internal successors, (1309), 9 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:55,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:55,502 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:42:55,502 INFO L175 Difference]: Start difference. First operand has 125 places, 321 transitions, 3939 flow. Second operand 9 states and 1309 transitions. [2023-01-28 03:42:55,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 404 transitions, 5302 flow [2023-01-28 03:43:00,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 404 transitions, 5189 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-01-28 03:43:00,254 INFO L231 Difference]: Finished difference. Result has 128 places, 335 transitions, 4563 flow [2023-01-28 03:43:00,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=3706, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4563, PETRI_PLACES=128, PETRI_TRANSITIONS=335} [2023-01-28 03:43:00,255 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 70 predicate places. [2023-01-28 03:43:00,255 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 335 transitions, 4563 flow [2023-01-28 03:43:00,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:00,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:00,256 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] [2023-01-28 03:43:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 03:43:00,256 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:00,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -156230979, now seen corresponding path program 8 times [2023-01-28 03:43:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466747428] [2023-01-28 03:43:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466747428] [2023-01-28 03:43:00,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466747428] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:00,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:00,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:43:00,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300346164] [2023-01-28 03:43:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:00,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:43:00,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:00,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:43:00,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:43:00,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:00,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 335 transitions, 4563 flow. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:00,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:00,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:00,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:43:07,366 INFO L130 PetriNetUnfolder]: 47585/73441 cut-off events. [2023-01-28 03:43:07,367 INFO L131 PetriNetUnfolder]: For 433084/441886 co-relation queries the response was YES. [2023-01-28 03:43:07,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341779 conditions, 73441 events. 47585/73441 cut-off events. For 433084/441886 co-relation queries the response was YES. Maximal size of possible extension queue 3871. Compared 607612 event pairs, 15596 based on Foata normal form. 1202/71697 useless extension candidates. Maximal degree in co-relation 341326. Up to 57735 conditions per place. [2023-01-28 03:43:07,999 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 178 selfloop transitions, 151 changer transitions 20/377 dead transitions. [2023-01-28 03:43:08,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 377 transitions, 5533 flow [2023-01-28 03:43:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 03:43:08,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 03:43:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1011 transitions. [2023-01-28 03:43:08,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139806812404677 [2023-01-28 03:43:08,002 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1011 transitions. [2023-01-28 03:43:08,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1011 transitions. [2023-01-28 03:43:08,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:43:08,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1011 transitions. [2023-01-28 03:43:08,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.42857142857142) internal successors, (1011), 7 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:08,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:08,006 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:08,006 INFO L175 Difference]: Start difference. First operand has 128 places, 335 transitions, 4563 flow. Second operand 7 states and 1011 transitions. [2023-01-28 03:43:08,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 377 transitions, 5533 flow [2023-01-28 03:43:10,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 377 transitions, 5353 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-01-28 03:43:10,063 INFO L231 Difference]: Finished difference. Result has 126 places, 324 transitions, 4751 flow [2023-01-28 03:43:10,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=4010, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4751, PETRI_PLACES=126, PETRI_TRANSITIONS=324} [2023-01-28 03:43:10,063 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 68 predicate places. [2023-01-28 03:43:10,063 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 324 transitions, 4751 flow [2023-01-28 03:43:10,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:10,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:10,064 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] [2023-01-28 03:43:10,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 03:43:10,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:10,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:10,064 INFO L85 PathProgramCache]: Analyzing trace with hash -977038993, now seen corresponding path program 9 times [2023-01-28 03:43:10,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914988620] [2023-01-28 03:43:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:10,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914988620] [2023-01-28 03:43:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914988620] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:43:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455298045] [2023-01-28 03:43:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:10,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:43:10,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:43:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:43:10,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:10,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 324 transitions, 4751 flow. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:10,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:10,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:10,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:43:16,839 INFO L130 PetriNetUnfolder]: 45993/71560 cut-off events. [2023-01-28 03:43:16,839 INFO L131 PetriNetUnfolder]: For 392738/402925 co-relation queries the response was YES. [2023-01-28 03:43:17,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329380 conditions, 71560 events. 45993/71560 cut-off events. For 392738/402925 co-relation queries the response was YES. Maximal size of possible extension queue 3768. Compared 598508 event pairs, 16223 based on Foata normal form. 932/69863 useless extension candidates. Maximal degree in co-relation 329344. Up to 58847 conditions per place. [2023-01-28 03:43:17,678 INFO L137 encePairwiseOnDemand]: 273/281 looper letters, 295 selfloop transitions, 50 changer transitions 0/372 dead transitions. [2023-01-28 03:43:17,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 372 transitions, 5883 flow [2023-01-28 03:43:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 03:43:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 03:43:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2023-01-28 03:43:17,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5145907473309609 [2023-01-28 03:43:17,681 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2023-01-28 03:43:17,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2023-01-28 03:43:17,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:43:17,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2023-01-28 03:43:17,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:17,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:17,684 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:17,684 INFO L175 Difference]: Start difference. First operand has 126 places, 324 transitions, 4751 flow. Second operand 5 states and 723 transitions. [2023-01-28 03:43:17,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 372 transitions, 5883 flow [2023-01-28 03:43:20,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 372 transitions, 5655 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-01-28 03:43:20,196 INFO L231 Difference]: Finished difference. Result has 113 places, 332 transitions, 4836 flow [2023-01-28 03:43:20,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=4383, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4836, PETRI_PLACES=113, PETRI_TRANSITIONS=332} [2023-01-28 03:43:20,197 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 55 predicate places. [2023-01-28 03:43:20,197 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 332 transitions, 4836 flow [2023-01-28 03:43:20,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:20,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:20,197 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] [2023-01-28 03:43:20,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 03:43:20,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:20,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -444821677, now seen corresponding path program 10 times [2023-01-28 03:43:20,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:20,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117061646] [2023-01-28 03:43:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:20,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117061646] [2023-01-28 03:43:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117061646] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:20,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:20,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 03:43:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222204406] [2023-01-28 03:43:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:20,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:43:20,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:20,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:43:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:43:20,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:20,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 332 transitions, 4836 flow. Second operand has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:20,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:20,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:20,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:43:26,910 INFO L130 PetriNetUnfolder]: 45908/71973 cut-off events. [2023-01-28 03:43:26,911 INFO L131 PetriNetUnfolder]: For 355428/365764 co-relation queries the response was YES. [2023-01-28 03:43:27,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317514 conditions, 71973 events. 45908/71973 cut-off events. For 355428/365764 co-relation queries the response was YES. Maximal size of possible extension queue 3721. Compared 605377 event pairs, 9981 based on Foata normal form. 2652/71980 useless extension candidates. Maximal degree in co-relation 317481. Up to 44942 conditions per place. [2023-01-28 03:43:27,541 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 231 selfloop transitions, 238 changer transitions 0/496 dead transitions. [2023-01-28 03:43:27,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 496 transitions, 7138 flow [2023-01-28 03:43:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 03:43:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 03:43:27,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1594 transitions. [2023-01-28 03:43:27,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156907149789712 [2023-01-28 03:43:27,543 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1594 transitions. [2023-01-28 03:43:27,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1594 transitions. [2023-01-28 03:43:27,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:43:27,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1594 transitions. [2023-01-28 03:43:27,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 144.9090909090909) internal successors, (1594), 11 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:27,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:27,549 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:27,549 INFO L175 Difference]: Start difference. First operand has 113 places, 332 transitions, 4836 flow. Second operand 11 states and 1594 transitions. [2023-01-28 03:43:27,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 496 transitions, 7138 flow [2023-01-28 03:43:29,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 496 transitions, 7088 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 03:43:29,073 INFO L231 Difference]: Finished difference. Result has 123 places, 386 transitions, 6192 flow [2023-01-28 03:43:29,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=4786, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6192, PETRI_PLACES=123, PETRI_TRANSITIONS=386} [2023-01-28 03:43:29,073 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 65 predicate places. [2023-01-28 03:43:29,073 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 386 transitions, 6192 flow [2023-01-28 03:43:29,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:29,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:29,074 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] [2023-01-28 03:43:29,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 03:43:29,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:29,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1085046347, now seen corresponding path program 11 times [2023-01-28 03:43:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:29,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921589989] [2023-01-28 03:43:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:29,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921589989] [2023-01-28 03:43:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921589989] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:29,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:29,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 03:43:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8589787] [2023-01-28 03:43:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:29,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:43:29,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:43:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:43:29,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:29,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 386 transitions, 6192 flow. Second operand has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:29,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:29,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:29,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:43:36,469 INFO L130 PetriNetUnfolder]: 46704/73161 cut-off events. [2023-01-28 03:43:36,469 INFO L131 PetriNetUnfolder]: For 460825/474473 co-relation queries the response was YES. [2023-01-28 03:43:37,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347926 conditions, 73161 events. 46704/73161 cut-off events. For 460825/474473 co-relation queries the response was YES. Maximal size of possible extension queue 3753. Compared 615344 event pairs, 10463 based on Foata normal form. 4456/74946 useless extension candidates. Maximal degree in co-relation 347891. Up to 45586 conditions per place. [2023-01-28 03:43:37,363 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 232 selfloop transitions, 250 changer transitions 0/509 dead transitions. [2023-01-28 03:43:37,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 509 transitions, 8028 flow [2023-01-28 03:43:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 03:43:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 03:43:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1600 transitions. [2023-01-28 03:43:37,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.517631834357813 [2023-01-28 03:43:37,366 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1600 transitions. [2023-01-28 03:43:37,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1600 transitions. [2023-01-28 03:43:37,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:43:37,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1600 transitions. [2023-01-28 03:43:37,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 145.45454545454547) internal successors, (1600), 11 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:37,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:37,372 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 281.0) internal successors, (3372), 12 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:37,372 INFO L175 Difference]: Start difference. First operand has 123 places, 386 transitions, 6192 flow. Second operand 11 states and 1600 transitions. [2023-01-28 03:43:37,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 509 transitions, 8028 flow [2023-01-28 03:43:39,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 509 transitions, 7694 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-01-28 03:43:39,111 INFO L231 Difference]: Finished difference. Result has 130 places, 405 transitions, 6867 flow [2023-01-28 03:43:39,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=5874, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6867, PETRI_PLACES=130, PETRI_TRANSITIONS=405} [2023-01-28 03:43:39,111 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 72 predicate places. [2023-01-28 03:43:39,111 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 405 transitions, 6867 flow [2023-01-28 03:43:39,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:39,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:39,112 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] [2023-01-28 03:43:39,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 03:43:39,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:39,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1710255359, now seen corresponding path program 12 times [2023-01-28 03:43:39,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:39,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984494074] [2023-01-28 03:43:39,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:39,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984494074] [2023-01-28 03:43:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984494074] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:39,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:39,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 03:43:39,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526026504] [2023-01-28 03:43:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:39,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 03:43:39,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 03:43:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 03:43:39,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:39,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 405 transitions, 6867 flow. Second operand has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:39,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:39,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:39,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:43:47,012 INFO L130 PetriNetUnfolder]: 47161/74505 cut-off events. [2023-01-28 03:43:47,012 INFO L131 PetriNetUnfolder]: For 530125/551656 co-relation queries the response was YES. [2023-01-28 03:43:47,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373452 conditions, 74505 events. 47161/74505 cut-off events. For 530125/551656 co-relation queries the response was YES. Maximal size of possible extension queue 3938. Compared 639660 event pairs, 8013 based on Foata normal form. 8133/79817 useless extension candidates. Maximal degree in co-relation 373415. Up to 31268 conditions per place. [2023-01-28 03:43:47,710 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 193 selfloop transitions, 327 changer transitions 6/553 dead transitions. [2023-01-28 03:43:47,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 553 transitions, 9176 flow [2023-01-28 03:43:47,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 03:43:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 03:43:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1331 transitions. [2023-01-28 03:43:47,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5262949782522737 [2023-01-28 03:43:47,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1331 transitions. [2023-01-28 03:43:47,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1331 transitions. [2023-01-28 03:43:47,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:43:47,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1331 transitions. [2023-01-28 03:43:47,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 147.88888888888889) internal successors, (1331), 9 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:47,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:47,716 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 281.0) internal successors, (2810), 10 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:47,716 INFO L175 Difference]: Start difference. First operand has 130 places, 405 transitions, 6867 flow. Second operand 9 states and 1331 transitions. [2023-01-28 03:43:47,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 553 transitions, 9176 flow [2023-01-28 03:43:50,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 553 transitions, 8967 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-01-28 03:43:50,539 INFO L231 Difference]: Finished difference. Result has 135 places, 445 transitions, 8175 flow [2023-01-28 03:43:50,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=6696, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8175, PETRI_PLACES=135, PETRI_TRANSITIONS=445} [2023-01-28 03:43:50,541 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 77 predicate places. [2023-01-28 03:43:50,541 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 445 transitions, 8175 flow [2023-01-28 03:43:50,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:50,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:43:50,542 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] [2023-01-28 03:43:50,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 03:43:50,542 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:43:50,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:43:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1006455521, now seen corresponding path program 13 times [2023-01-28 03:43:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:43:50,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875497627] [2023-01-28 03:43:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:43:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:43:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:43:50,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:43:50,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:43:50,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875497627] [2023-01-28 03:43:50,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875497627] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:43:50,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:43:50,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-01-28 03:43:50,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448163244] [2023-01-28 03:43:50,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:43:50,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 03:43:50,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:43:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 03:43:50,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-01-28 03:43:50,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:43:50,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 445 transitions, 8175 flow. Second operand has 11 states, 11 states have (on average 133.27272727272728) internal successors, (1466), 11 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:43:50,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:43:50,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:43:50,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:44:00,848 INFO L130 PetriNetUnfolder]: 55494/88480 cut-off events. [2023-01-28 03:44:00,848 INFO L131 PetriNetUnfolder]: For 824747/847499 co-relation queries the response was YES. [2023-01-28 03:44:01,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470900 conditions, 88480 events. 55494/88480 cut-off events. For 824747/847499 co-relation queries the response was YES. Maximal size of possible extension queue 4912. Compared 791366 event pairs, 13611 based on Foata normal form. 7426/92345 useless extension candidates. Maximal degree in co-relation 470862. Up to 47855 conditions per place. [2023-01-28 03:44:01,652 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 342 selfloop transitions, 316 changer transitions 1/686 dead transitions. [2023-01-28 03:44:01,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 686 transitions, 12055 flow [2023-01-28 03:44:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-28 03:44:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-01-28 03:44:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2605 transitions. [2023-01-28 03:44:01,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5150257018584421 [2023-01-28 03:44:01,654 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2605 transitions. [2023-01-28 03:44:01,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2605 transitions. [2023-01-28 03:44:01,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:44:01,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2605 transitions. [2023-01-28 03:44:01,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 144.72222222222223) internal successors, (2605), 18 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:01,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 281.0) internal successors, (5339), 19 states have internal predecessors, (5339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:01,660 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 281.0) internal successors, (5339), 19 states have internal predecessors, (5339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:01,660 INFO L175 Difference]: Start difference. First operand has 135 places, 445 transitions, 8175 flow. Second operand 18 states and 2605 transitions. [2023-01-28 03:44:01,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 686 transitions, 12055 flow [2023-01-28 03:44:05,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 686 transitions, 11573 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 03:44:05,262 INFO L231 Difference]: Finished difference. Result has 153 places, 542 transitions, 10556 flow [2023-01-28 03:44:05,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=7809, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=239, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10556, PETRI_PLACES=153, PETRI_TRANSITIONS=542} [2023-01-28 03:44:05,263 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 95 predicate places. [2023-01-28 03:44:05,263 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 542 transitions, 10556 flow [2023-01-28 03:44:05,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.27272727272728) internal successors, (1466), 11 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:05,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:44:05,263 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] [2023-01-28 03:44:05,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 03:44:05,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:44:05,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:44:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash -27895093, now seen corresponding path program 14 times [2023-01-28 03:44:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:44:05,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934957263] [2023-01-28 03:44:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:44:05,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:44:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:44:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:44:05,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:44:05,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934957263] [2023-01-28 03:44:05,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934957263] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:44:05,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:44:05,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 03:44:05,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859945118] [2023-01-28 03:44:05,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:44:05,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:44:05,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:44:05,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:44:05,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:44:05,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-01-28 03:44:05,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 542 transitions, 10556 flow. Second operand has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:05,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:44:05,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-01-28 03:44:05,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:44:16,362 INFO L130 PetriNetUnfolder]: 55468/88956 cut-off events. [2023-01-28 03:44:16,362 INFO L131 PetriNetUnfolder]: For 1006395/1028238 co-relation queries the response was YES. [2023-01-28 03:44:16,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493933 conditions, 88956 events. 55468/88956 cut-off events. For 1006395/1028238 co-relation queries the response was YES. Maximal size of possible extension queue 4801. Compared 799264 event pairs, 16756 based on Foata normal form. 3102/88762 useless extension candidates. Maximal degree in co-relation 493890. Up to 67607 conditions per place. [2023-01-28 03:44:17,437 INFO L137 encePairwiseOnDemand]: 269/281 looper letters, 454 selfloop transitions, 226 changer transitions 11/718 dead transitions. [2023-01-28 03:44:17,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 718 transitions, 14442 flow [2023-01-28 03:44:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 03:44:17,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 03:44:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1733 transitions. [2023-01-28 03:44:17,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.513938315539739 [2023-01-28 03:44:17,439 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1733 transitions. [2023-01-28 03:44:17,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1733 transitions. [2023-01-28 03:44:17,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:44:17,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1733 transitions. [2023-01-28 03:44:17,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 144.41666666666666) internal successors, (1733), 12 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:17,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 281.0) internal successors, (3653), 13 states have internal predecessors, (3653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:17,443 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 281.0) internal successors, (3653), 13 states have internal predecessors, (3653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:17,443 INFO L175 Difference]: Start difference. First operand has 153 places, 542 transitions, 10556 flow. Second operand 12 states and 1733 transitions. [2023-01-28 03:44:17,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 718 transitions, 14442 flow [2023-01-28 03:44:23,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 718 transitions, 14095 flow, removed 61 selfloop flow, removed 5 redundant places. [2023-01-28 03:44:23,702 INFO L231 Difference]: Finished difference. Result has 160 places, 604 transitions, 12381 flow [2023-01-28 03:44:23,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=10279, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12381, PETRI_PLACES=160, PETRI_TRANSITIONS=604} [2023-01-28 03:44:23,703 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 102 predicate places. [2023-01-28 03:44:23,703 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 604 transitions, 12381 flow [2023-01-28 03:44:23,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.5) internal successors, (1076), 8 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:23,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:44:23,703 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] [2023-01-28 03:44:23,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 03:44:23,703 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 03:44:23,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:44:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1533231369, now seen corresponding path program 15 times [2023-01-28 03:44:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:44:23,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382850535] [2023-01-28 03:44:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:44:23,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:44:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:44:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:44:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:44:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382850535] [2023-01-28 03:44:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382850535] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:44:23,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:44:23,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 03:44:23,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494335532] [2023-01-28 03:44:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:44:23,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:44:23,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:44:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:44:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:44:23,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 281 [2023-01-28 03:44:23,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 604 transitions, 12381 flow. Second operand has 8 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 03:44:23,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:44:23,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 281 [2023-01-28 03:44:23,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand