/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-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:01:31,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:01:31,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:01:31,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:01:31,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:01:31,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:01:31,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:01:31,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:01:31,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:01:31,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:01:31,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:01:31,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:01:31,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:01:31,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:01:31,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:01:31,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:01:31,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:01:31,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:01:31,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:01:31,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:01:31,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:01:31,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:01:31,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:01:31,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:01:31,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:01:31,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:01:31,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:01:31,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:01:31,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:01:31,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:01:31,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:01:31,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:01:31,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:01:31,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:01:31,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:01:31,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:01:31,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:01:31,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:01:31,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:01:31,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:01:31,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:01:31,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 07:01:31,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:01:31,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:01:31,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:01:31,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:01:31,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:01:31,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:01:31,557 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:01:31,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:01:31,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:01:31,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:01:31,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:01:31,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:01:31,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:01:31,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:01:31,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:01:31,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:01:31,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:01:31,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:01:31,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:01:31,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:01:31,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:01:31,565 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:01:31,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:01:31,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:01:31,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:01:31,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:01:31,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:01:31,795 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:01:31,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2022-01-19 07:01:31,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7566ee11e/9f67a02ae7fe4036829f4cf5c1342104/FLAGcec9c6240 [2022-01-19 07:01:32,169 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:01:32,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2022-01-19 07:01:32,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7566ee11e/9f67a02ae7fe4036829f4cf5c1342104/FLAGcec9c6240 [2022-01-19 07:01:32,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7566ee11e/9f67a02ae7fe4036829f4cf5c1342104 [2022-01-19 07:01:32,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:01:32,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:01:32,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:01:32,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:01:32,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:01:32,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d1c5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32, skipping insertion in model container [2022-01-19 07:01:32,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:01:32,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:01:32,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c[3015,3028] [2022-01-19 07:01:32,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:01:32,774 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:01:32,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c[3015,3028] [2022-01-19 07:01:32,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:01:32,803 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:01:32,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32 WrapperNode [2022-01-19 07:01:32,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:01:32,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:01:32,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:01:32,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:01:32,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,831 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 221 [2022-01-19 07:01:32,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:01:32,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:01:32,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:01:32,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:01:32,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:01:32,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:01:32,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:01:32,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:01:32,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (1/1) ... [2022-01-19 07:01:32,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:01:32,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:01:32,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 07:01:32,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:01:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:01:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:01:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:01:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:01:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:01:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:01:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:01:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:01:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:01:32,917 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 07:01:32,984 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:01:32,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:01:33,259 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:01:33,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:01:33,267 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 07:01:33,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:01:33 BoogieIcfgContainer [2022-01-19 07:01:33,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:01:33,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:01:33,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:01:33,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:01:33,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:01:32" (1/3) ... [2022-01-19 07:01:33,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274a2dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:01:33, skipping insertion in model container [2022-01-19 07:01:33,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:01:32" (2/3) ... [2022-01-19 07:01:33,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274a2dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:01:33, skipping insertion in model container [2022-01-19 07:01:33,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:01:33" (3/3) ... [2022-01-19 07:01:33,284 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2022-01-19 07:01:33,288 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:01:33,288 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:01:33,288 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:01:33,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,367 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,368 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,370 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,371 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,372 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,373 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,374 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,375 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,376 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,376 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,376 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,376 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,376 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,377 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,378 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,379 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,379 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,379 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,380 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,381 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,382 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,383 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,383 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,383 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,383 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,388 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,388 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,389 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:01:33,394 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 07:01:33,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:01:33,429 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 07:01:33,430 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 07:01:33,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 286 transitions, 596 flow [2022-01-19 07:01:33,508 INFO L129 PetriNetUnfolder]: 26/283 cut-off events. [2022-01-19 07:01:33,509 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:01:33,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 283 events. 26/283 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 738 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-01-19 07:01:33,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 286 transitions, 596 flow [2022-01-19 07:01:33,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 256 places, 272 transitions, 562 flow [2022-01-19 07:01:33,571 INFO L129 PetriNetUnfolder]: 26/271 cut-off events. [2022-01-19 07:01:33,571 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:01:33,571 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:33,572 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:33,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1493606533, now seen corresponding path program 1 times [2022-01-19 07:01:33,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:33,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677920850] [2022-01-19 07:01:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:33,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:33,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:33,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677920850] [2022-01-19 07:01:33,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677920850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:33,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:33,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:33,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111364794] [2022-01-19 07:01:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:33,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:33,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:33,843 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 07:01:33,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 272 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:33,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:33,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 07:01:33,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:34,026 INFO L129 PetriNetUnfolder]: 87/962 cut-off events. [2022-01-19 07:01:34,026 INFO L130 PetriNetUnfolder]: For 46/50 co-relation queries the response was YES. [2022-01-19 07:01:34,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 962 events. 87/962 cut-off events. For 46/50 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6584 event pairs, 8 based on Foata normal form. 46/891 useless extension candidates. Maximal degree in co-relation 859. Up to 28 conditions per place. [2022-01-19 07:01:34,042 INFO L132 encePairwiseOnDemand]: 274/286 looper letters, 17 selfloop transitions, 2 changer transitions 2/271 dead transitions. [2022-01-19 07:01:34,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 271 transitions, 613 flow [2022-01-19 07:01:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2022-01-19 07:01:34,057 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9696969696969697 [2022-01-19 07:01:34,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2022-01-19 07:01:34,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2022-01-19 07:01:34,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:34,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2022-01-19 07:01:34,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,081 INFO L186 Difference]: Start difference. First operand has 256 places, 272 transitions, 562 flow. Second operand 3 states and 832 transitions. [2022-01-19 07:01:34,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 271 transitions, 613 flow [2022-01-19 07:01:34,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 271 transitions, 591 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:01:34,091 INFO L242 Difference]: Finished difference. Result has 254 places, 264 transitions, 550 flow [2022-01-19 07:01:34,093 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=254, PETRI_TRANSITIONS=264} [2022-01-19 07:01:34,097 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, -2 predicate places. [2022-01-19 07:01:34,097 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 264 transitions, 550 flow [2022-01-19 07:01:34,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,098 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:34,098 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:34,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:01:34,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1388136453, now seen corresponding path program 1 times [2022-01-19 07:01:34,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:34,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194983899] [2022-01-19 07:01:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:34,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:34,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:34,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194983899] [2022-01-19 07:01:34,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194983899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:34,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:34,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:34,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304904938] [2022-01-19 07:01:34,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:34,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:34,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:34,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:34,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:34,216 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 07:01:34,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 264 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:34,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 07:01:34,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:34,453 INFO L129 PetriNetUnfolder]: 137/1588 cut-off events. [2022-01-19 07:01:34,453 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2022-01-19 07:01:34,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 1588 events. 137/1588 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13149 event pairs, 19 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 967. Up to 78 conditions per place. [2022-01-19 07:01:34,469 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 17 selfloop transitions, 5 changer transitions 0/272 dead transitions. [2022-01-19 07:01:34,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 272 transitions, 615 flow [2022-01-19 07:01:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 07:01:34,471 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 07:01:34,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:34,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,476 INFO L186 Difference]: Start difference. First operand has 254 places, 264 transitions, 550 flow. Second operand 3 states and 814 transitions. [2022-01-19 07:01:34,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 272 transitions, 615 flow [2022-01-19 07:01:34,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 272 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 07:01:34,482 INFO L242 Difference]: Finished difference. Result has 255 places, 267 transitions, 586 flow [2022-01-19 07:01:34,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=255, PETRI_TRANSITIONS=267} [2022-01-19 07:01:34,483 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, -1 predicate places. [2022-01-19 07:01:34,483 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 267 transitions, 586 flow [2022-01-19 07:01:34,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,484 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:34,484 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:34,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:01:34,484 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 378354523, now seen corresponding path program 1 times [2022-01-19 07:01:34,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:34,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296751640] [2022-01-19 07:01:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:34,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:34,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296751640] [2022-01-19 07:01:34,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296751640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:34,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:34,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:34,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384426898] [2022-01-19 07:01:34,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:34,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:34,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:34,567 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 07:01:34,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 267 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:34,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 07:01:34,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:34,735 INFO L129 PetriNetUnfolder]: 119/1497 cut-off events. [2022-01-19 07:01:34,735 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-01-19 07:01:34,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 1497 events. 119/1497 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 11223 event pairs, 19 based on Foata normal form. 12/1359 useless extension candidates. Maximal degree in co-relation 701. Up to 55 conditions per place. [2022-01-19 07:01:34,754 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 22 selfloop transitions, 3 changer transitions 0/275 dead transitions. [2022-01-19 07:01:34,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 275 transitions, 663 flow [2022-01-19 07:01:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 07:01:34,757 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 07:01:34,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:34,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 07:01:34,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,760 INFO L186 Difference]: Start difference. First operand has 255 places, 267 transitions, 586 flow. Second operand 3 states and 814 transitions. [2022-01-19 07:01:34,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 275 transitions, 663 flow [2022-01-19 07:01:34,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 275 transitions, 653 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:34,766 INFO L242 Difference]: Finished difference. Result has 257 places, 270 transitions, 612 flow [2022-01-19 07:01:34,767 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=257, PETRI_TRANSITIONS=270} [2022-01-19 07:01:34,768 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1 predicate places. [2022-01-19 07:01:34,769 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 270 transitions, 612 flow [2022-01-19 07:01:34,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,769 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:34,769 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:34,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:01:34,770 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:34,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1782641751, now seen corresponding path program 2 times [2022-01-19 07:01:34,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:34,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572171914] [2022-01-19 07:01:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:34,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:34,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:34,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572171914] [2022-01-19 07:01:34,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572171914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:34,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:34,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:34,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246713751] [2022-01-19 07:01:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:34,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:34,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:34,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 07:01:34,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:34,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 07:01:34,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:34,956 INFO L129 PetriNetUnfolder]: 74/1053 cut-off events. [2022-01-19 07:01:34,956 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-01-19 07:01:34,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 1053 events. 74/1053 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7174 event pairs, 8 based on Foata normal form. 0/960 useless extension candidates. Maximal degree in co-relation 910. Up to 28 conditions per place. [2022-01-19 07:01:34,968 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 17 selfloop transitions, 4 changer transitions 0/277 dead transitions. [2022-01-19 07:01:34,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 277 transitions, 677 flow [2022-01-19 07:01:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 07:01:34,973 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 07:01:34,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 07:01:34,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 07:01:34,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:34,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 07:01:34,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 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) [2022-01-19 07:01:34,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,976 INFO L186 Difference]: Start difference. First operand has 257 places, 270 transitions, 612 flow. Second operand 3 states and 816 transitions. [2022-01-19 07:01:34,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 277 transitions, 677 flow [2022-01-19 07:01:34,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 277 transitions, 668 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-01-19 07:01:34,988 INFO L242 Difference]: Finished difference. Result has 260 places, 272 transitions, 635 flow [2022-01-19 07:01:34,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=260, PETRI_TRANSITIONS=272} [2022-01-19 07:01:34,989 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 4 predicate places. [2022-01-19 07:01:34,989 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 272 transitions, 635 flow [2022-01-19 07:01:34,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:34,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:34,991 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:34,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:01:34,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash 29985841, now seen corresponding path program 1 times [2022-01-19 07:01:34,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:34,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688429851] [2022-01-19 07:01:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:34,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:35,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:35,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688429851] [2022-01-19 07:01:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688429851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:35,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:35,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091844024] [2022-01-19 07:01:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:35,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:35,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:35,065 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 07:01:35,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 272 transitions, 635 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:35,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 07:01:35,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:35,351 INFO L129 PetriNetUnfolder]: 209/3217 cut-off events. [2022-01-19 07:01:35,351 INFO L130 PetriNetUnfolder]: For 86/135 co-relation queries the response was YES. [2022-01-19 07:01:35,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 3217 events. 209/3217 cut-off events. For 86/135 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 33504 event pairs, 38 based on Foata normal form. 0/2922 useless extension candidates. Maximal degree in co-relation 1975. Up to 143 conditions per place. [2022-01-19 07:01:35,369 INFO L132 encePairwiseOnDemand]: 276/286 looper letters, 18 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2022-01-19 07:01:35,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 280 transitions, 703 flow [2022-01-19 07:01:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:35,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:35,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 07:01:35,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 07:01:35,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:35,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,374 INFO L186 Difference]: Start difference. First operand has 260 places, 272 transitions, 635 flow. Second operand 3 states and 811 transitions. [2022-01-19 07:01:35,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 280 transitions, 703 flow [2022-01-19 07:01:35,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 280 transitions, 691 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:35,379 INFO L242 Difference]: Finished difference. Result has 262 places, 276 transitions, 671 flow [2022-01-19 07:01:35,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=262, PETRI_TRANSITIONS=276} [2022-01-19 07:01:35,381 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 6 predicate places. [2022-01-19 07:01:35,381 INFO L470 AbstractCegarLoop]: Abstraction has has 262 places, 276 transitions, 671 flow [2022-01-19 07:01:35,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,382 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:35,382 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:35,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 07:01:35,382 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:35,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:35,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1606902331, now seen corresponding path program 1 times [2022-01-19 07:01:35,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:35,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462353218] [2022-01-19 07:01:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:35,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:35,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:35,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462353218] [2022-01-19 07:01:35,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462353218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:35,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:35,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:01:35,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662702345] [2022-01-19 07:01:35,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:35,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:01:35,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:35,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:01:35,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:01:35,430 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 07:01:35,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 276 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:35,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 07:01:35,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:35,597 INFO L129 PetriNetUnfolder]: 144/2249 cut-off events. [2022-01-19 07:01:35,597 INFO L130 PetriNetUnfolder]: For 203/248 co-relation queries the response was YES. [2022-01-19 07:01:35,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 2249 events. 144/2249 cut-off events. For 203/248 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20271 event pairs, 24 based on Foata normal form. 28/2113 useless extension candidates. Maximal degree in co-relation 1281. Up to 96 conditions per place. [2022-01-19 07:01:35,616 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 24 selfloop transitions, 4 changer transitions 0/284 dead transitions. [2022-01-19 07:01:35,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 284 transitions, 755 flow [2022-01-19 07:01:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:01:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:01:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 07:01:35,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 07:01:35,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:35,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 07:01:35,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,622 INFO L186 Difference]: Start difference. First operand has 262 places, 276 transitions, 671 flow. Second operand 3 states and 811 transitions. [2022-01-19 07:01:35,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 284 transitions, 755 flow [2022-01-19 07:01:35,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 284 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:35,626 INFO L242 Difference]: Finished difference. Result has 264 places, 280 transitions, 707 flow [2022-01-19 07:01:35,627 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=707, PETRI_PLACES=264, PETRI_TRANSITIONS=280} [2022-01-19 07:01:35,628 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 8 predicate places. [2022-01-19 07:01:35,628 INFO L470 AbstractCegarLoop]: Abstraction has has 264 places, 280 transitions, 707 flow [2022-01-19 07:01:35,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,629 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:35,629 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:35,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 07:01:35,630 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:35,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:35,630 INFO L85 PathProgramCache]: Analyzing trace with hash -297655397, now seen corresponding path program 1 times [2022-01-19 07:01:35,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:35,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871166870] [2022-01-19 07:01:35,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:35,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:35,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:35,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:35,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871166870] [2022-01-19 07:01:35,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871166870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:35,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:35,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:01:35,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431039854] [2022-01-19 07:01:35,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:35,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:01:35,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:01:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:01:35,718 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 286 [2022-01-19 07:01:35,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 280 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:35,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 286 [2022-01-19 07:01:35,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:35,913 INFO L129 PetriNetUnfolder]: 123/1881 cut-off events. [2022-01-19 07:01:35,913 INFO L130 PetriNetUnfolder]: For 104/253 co-relation queries the response was YES. [2022-01-19 07:01:35,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1881 events. 123/1881 cut-off events. For 104/253 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 17953 event pairs, 26 based on Foata normal form. 2/1753 useless extension candidates. Maximal degree in co-relation 1683. Up to 133 conditions per place. [2022-01-19 07:01:35,929 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 23 selfloop transitions, 2 changer transitions 17/300 dead transitions. [2022-01-19 07:01:35,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 300 transitions, 844 flow [2022-01-19 07:01:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:01:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:01:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2320 transitions. [2022-01-19 07:01:35,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013209013209014 [2022-01-19 07:01:35,933 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2320 transitions. [2022-01-19 07:01:35,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2320 transitions. [2022-01-19 07:01:35,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:35,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2320 transitions. [2022-01-19 07:01:35,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 257.77777777777777) internal successors, (2320), 9 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,941 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,941 INFO L186 Difference]: Start difference. First operand has 264 places, 280 transitions, 707 flow. Second operand 9 states and 2320 transitions. [2022-01-19 07:01:35,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 300 transitions, 844 flow [2022-01-19 07:01:35,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 300 transitions, 832 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-01-19 07:01:35,945 INFO L242 Difference]: Finished difference. Result has 278 places, 281 transitions, 718 flow [2022-01-19 07:01:35,946 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=718, PETRI_PLACES=278, PETRI_TRANSITIONS=281} [2022-01-19 07:01:35,946 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 22 predicate places. [2022-01-19 07:01:35,946 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 281 transitions, 718 flow [2022-01-19 07:01:35,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:35,947 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:35,947 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:35,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 07:01:35,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1373554015, now seen corresponding path program 1 times [2022-01-19 07:01:35,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:35,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358639708] [2022-01-19 07:01:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:35,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:36,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:36,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358639708] [2022-01-19 07:01:36,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358639708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:36,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:36,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:36,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672917525] [2022-01-19 07:01:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:36,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:36,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:36,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:36,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:36,066 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:36,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 281 transitions, 718 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:36,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:36,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:36,622 INFO L129 PetriNetUnfolder]: 960/4324 cut-off events. [2022-01-19 07:01:36,622 INFO L130 PetriNetUnfolder]: For 269/366 co-relation queries the response was YES. [2022-01-19 07:01:36,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6478 conditions, 4324 events. 960/4324 cut-off events. For 269/366 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 46936 event pairs, 215 based on Foata normal form. 3/4090 useless extension candidates. Maximal degree in co-relation 6457. Up to 911 conditions per place. [2022-01-19 07:01:36,658 INFO L132 encePairwiseOnDemand]: 272/286 looper letters, 65 selfloop transitions, 46 changer transitions 22/384 dead transitions. [2022-01-19 07:01:36,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 384 transitions, 1224 flow [2022-01-19 07:01:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 07:01:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 07:01:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5524 transitions. [2022-01-19 07:01:36,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8779402415766052 [2022-01-19 07:01:36,666 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5524 transitions. [2022-01-19 07:01:36,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5524 transitions. [2022-01-19 07:01:36,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:36,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5524 transitions. [2022-01-19 07:01:36,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 251.0909090909091) internal successors, (5524), 22 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,682 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,682 INFO L186 Difference]: Start difference. First operand has 278 places, 281 transitions, 718 flow. Second operand 22 states and 5524 transitions. [2022-01-19 07:01:36,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 384 transitions, 1224 flow [2022-01-19 07:01:36,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 384 transitions, 1207 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-01-19 07:01:36,687 INFO L242 Difference]: Finished difference. Result has 302 places, 326 transitions, 996 flow [2022-01-19 07:01:36,688 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=996, PETRI_PLACES=302, PETRI_TRANSITIONS=326} [2022-01-19 07:01:36,688 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 46 predicate places. [2022-01-19 07:01:36,688 INFO L470 AbstractCegarLoop]: Abstraction has has 302 places, 326 transitions, 996 flow [2022-01-19 07:01:36,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:36,689 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:36,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 07:01:36,689 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:36,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1394085275, now seen corresponding path program 1 times [2022-01-19 07:01:36,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:36,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367039885] [2022-01-19 07:01:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:36,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:36,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367039885] [2022-01-19 07:01:36,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367039885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:36,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:36,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:36,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124772859] [2022-01-19 07:01:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:36,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:36,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:36,775 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:36,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 326 transitions, 996 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:36,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:36,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:36,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:37,396 INFO L129 PetriNetUnfolder]: 1007/4631 cut-off events. [2022-01-19 07:01:37,396 INFO L130 PetriNetUnfolder]: For 3320/3435 co-relation queries the response was YES. [2022-01-19 07:01:37,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9706 conditions, 4631 events. 1007/4631 cut-off events. For 3320/3435 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 51785 event pairs, 480 based on Foata normal form. 2/4409 useless extension candidates. Maximal degree in co-relation 9656. Up to 1392 conditions per place. [2022-01-19 07:01:37,434 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 120 selfloop transitions, 31 changer transitions 28/430 dead transitions. [2022-01-19 07:01:37,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 430 transitions, 1757 flow [2022-01-19 07:01:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 07:01:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 07:01:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6015 transitions. [2022-01-19 07:01:37,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8763111888111889 [2022-01-19 07:01:37,442 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6015 transitions. [2022-01-19 07:01:37,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6015 transitions. [2022-01-19 07:01:37,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:37,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6015 transitions. [2022-01-19 07:01:37,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.625) internal successors, (6015), 24 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:37,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:37,459 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:37,459 INFO L186 Difference]: Start difference. First operand has 302 places, 326 transitions, 996 flow. Second operand 24 states and 6015 transitions. [2022-01-19 07:01:37,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 430 transitions, 1757 flow [2022-01-19 07:01:37,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 430 transitions, 1747 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:37,486 INFO L242 Difference]: Finished difference. Result has 341 places, 355 transitions, 1319 flow [2022-01-19 07:01:37,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1319, PETRI_PLACES=341, PETRI_TRANSITIONS=355} [2022-01-19 07:01:37,487 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 85 predicate places. [2022-01-19 07:01:37,487 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 355 transitions, 1319 flow [2022-01-19 07:01:37,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:37,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:37,487 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:37,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 07:01:37,488 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2142703709, now seen corresponding path program 2 times [2022-01-19 07:01:37,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:37,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828139611] [2022-01-19 07:01:37,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:37,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:37,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:37,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828139611] [2022-01-19 07:01:37,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828139611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:37,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:37,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:37,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522312373] [2022-01-19 07:01:37,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:37,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:37,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:37,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:37,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:37,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 355 transitions, 1319 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:37,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:37,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:37,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:38,301 INFO L129 PetriNetUnfolder]: 1092/4901 cut-off events. [2022-01-19 07:01:38,301 INFO L130 PetriNetUnfolder]: For 9057/9172 co-relation queries the response was YES. [2022-01-19 07:01:38,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13202 conditions, 4901 events. 1092/4901 cut-off events. For 9057/9172 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 54836 event pairs, 562 based on Foata normal form. 4/4652 useless extension candidates. Maximal degree in co-relation 13133. Up to 1583 conditions per place. [2022-01-19 07:01:38,356 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 123 selfloop transitions, 41 changer transitions 18/433 dead transitions. [2022-01-19 07:01:38,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 433 transitions, 2280 flow [2022-01-19 07:01:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:01:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:01:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:01:38,364 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:01:38,364 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:01:38,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:01:38,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:38,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:01:38,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:38,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:38,379 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:38,379 INFO L186 Difference]: Start difference. First operand has 341 places, 355 transitions, 1319 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:01:38,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 433 transitions, 2280 flow [2022-01-19 07:01:38,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 433 transitions, 2052 flow, removed 114 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:38,430 INFO L242 Difference]: Finished difference. Result has 364 places, 384 transitions, 1599 flow [2022-01-19 07:01:38,431 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1599, PETRI_PLACES=364, PETRI_TRANSITIONS=384} [2022-01-19 07:01:38,431 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 108 predicate places. [2022-01-19 07:01:38,431 INFO L470 AbstractCegarLoop]: Abstraction has has 364 places, 384 transitions, 1599 flow [2022-01-19 07:01:38,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:38,432 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:38,432 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:38,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 07:01:38,432 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:38,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2035053495, now seen corresponding path program 3 times [2022-01-19 07:01:38,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:38,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660801592] [2022-01-19 07:01:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:38,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:38,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:38,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660801592] [2022-01-19 07:01:38,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660801592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:38,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:38,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:38,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564269263] [2022-01-19 07:01:38,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:38,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:38,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:38,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:38,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:38,513 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:38,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 384 transitions, 1599 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:38,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:38,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:38,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:39,283 INFO L129 PetriNetUnfolder]: 1157/5281 cut-off events. [2022-01-19 07:01:39,283 INFO L130 PetriNetUnfolder]: For 10719/10834 co-relation queries the response was YES. [2022-01-19 07:01:39,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14775 conditions, 5281 events. 1157/5281 cut-off events. For 10719/10834 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 60501 event pairs, 541 based on Foata normal form. 2/5040 useless extension candidates. Maximal degree in co-relation 14697. Up to 1617 conditions per place. [2022-01-19 07:01:39,337 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 130 selfloop transitions, 53 changer transitions 14/448 dead transitions. [2022-01-19 07:01:39,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 448 transitions, 2510 flow [2022-01-19 07:01:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:01:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:01:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4014 transitions. [2022-01-19 07:01:39,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8771853146853147 [2022-01-19 07:01:39,344 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4014 transitions. [2022-01-19 07:01:39,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4014 transitions. [2022-01-19 07:01:39,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:39,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4014 transitions. [2022-01-19 07:01:39,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 250.875) internal successors, (4014), 16 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:39,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:39,356 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:39,356 INFO L186 Difference]: Start difference. First operand has 364 places, 384 transitions, 1599 flow. Second operand 16 states and 4014 transitions. [2022-01-19 07:01:39,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 448 transitions, 2510 flow [2022-01-19 07:01:39,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 448 transitions, 2386 flow, removed 62 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:39,426 INFO L242 Difference]: Finished difference. Result has 386 places, 403 transitions, 1892 flow [2022-01-19 07:01:39,427 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1509, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1892, PETRI_PLACES=386, PETRI_TRANSITIONS=403} [2022-01-19 07:01:39,427 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 130 predicate places. [2022-01-19 07:01:39,427 INFO L470 AbstractCegarLoop]: Abstraction has has 386 places, 403 transitions, 1892 flow [2022-01-19 07:01:39,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:39,428 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:39,428 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:39,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 07:01:39,428 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1940695569, now seen corresponding path program 4 times [2022-01-19 07:01:39,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:39,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901248351] [2022-01-19 07:01:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:39,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:39,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:39,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901248351] [2022-01-19 07:01:39,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901248351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:39,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:39,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:39,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124721928] [2022-01-19 07:01:39,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:39,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:39,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:39,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:39,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:39,531 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:39,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 403 transitions, 1892 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:39,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:39,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:39,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:40,439 INFO L129 PetriNetUnfolder]: 1294/5780 cut-off events. [2022-01-19 07:01:40,439 INFO L130 PetriNetUnfolder]: For 17111/17235 co-relation queries the response was YES. [2022-01-19 07:01:40,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17423 conditions, 5780 events. 1294/5780 cut-off events. For 17111/17235 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 66911 event pairs, 599 based on Foata normal form. 4/5534 useless extension candidates. Maximal degree in co-relation 17335. Up to 1691 conditions per place. [2022-01-19 07:01:40,499 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 166 selfloop transitions, 44 changer transitions 17/478 dead transitions. [2022-01-19 07:01:40,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 478 transitions, 3090 flow [2022-01-19 07:01:40,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:01:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:01:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4268 transitions. [2022-01-19 07:01:40,502 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2022-01-19 07:01:40,502 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4268 transitions. [2022-01-19 07:01:40,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4268 transitions. [2022-01-19 07:01:40,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:40,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4268 transitions. [2022-01-19 07:01:40,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 251.05882352941177) internal successors, (4268), 17 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:40,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:40,513 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:40,513 INFO L186 Difference]: Start difference. First operand has 386 places, 403 transitions, 1892 flow. Second operand 17 states and 4268 transitions. [2022-01-19 07:01:40,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 478 transitions, 3090 flow [2022-01-19 07:01:40,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 478 transitions, 2960 flow, removed 56 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:40,598 INFO L242 Difference]: Finished difference. Result has 408 places, 432 transitions, 2364 flow [2022-01-19 07:01:40,599 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2364, PETRI_PLACES=408, PETRI_TRANSITIONS=432} [2022-01-19 07:01:40,599 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 152 predicate places. [2022-01-19 07:01:40,599 INFO L470 AbstractCegarLoop]: Abstraction has has 408 places, 432 transitions, 2364 flow [2022-01-19 07:01:40,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:40,600 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:40,600 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:40,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 07:01:40,600 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1748130669, now seen corresponding path program 5 times [2022-01-19 07:01:40,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:40,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425503941] [2022-01-19 07:01:40,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:40,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:40,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:40,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425503941] [2022-01-19 07:01:40,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425503941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:40,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:40,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:40,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22773546] [2022-01-19 07:01:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:40,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:40,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:40,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:40,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:40,709 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:40,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 432 transitions, 2364 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:40,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:40,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:40,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:41,661 INFO L129 PetriNetUnfolder]: 1357/6057 cut-off events. [2022-01-19 07:01:41,662 INFO L130 PetriNetUnfolder]: For 23009/23142 co-relation queries the response was YES. [2022-01-19 07:01:41,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19519 conditions, 6057 events. 1357/6057 cut-off events. For 23009/23142 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 71249 event pairs, 559 based on Foata normal form. 11/5825 useless extension candidates. Maximal degree in co-relation 19422. Up to 1709 conditions per place. [2022-01-19 07:01:41,724 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 158 selfloop transitions, 83 changer transitions 24/516 dead transitions. [2022-01-19 07:01:41,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 516 transitions, 3730 flow [2022-01-19 07:01:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 07:01:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 07:01:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5507 transitions. [2022-01-19 07:01:41,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752383979656707 [2022-01-19 07:01:41,728 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5507 transitions. [2022-01-19 07:01:41,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5507 transitions. [2022-01-19 07:01:41,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:41,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5507 transitions. [2022-01-19 07:01:41,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.3181818181818) internal successors, (5507), 22 states have internal predecessors, (5507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:41,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:41,740 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:41,740 INFO L186 Difference]: Start difference. First operand has 408 places, 432 transitions, 2364 flow. Second operand 22 states and 5507 transitions. [2022-01-19 07:01:41,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 516 transitions, 3730 flow [2022-01-19 07:01:41,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 516 transitions, 3462 flow, removed 134 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:41,831 INFO L242 Difference]: Finished difference. Result has 438 places, 460 transitions, 2806 flow [2022-01-19 07:01:41,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2806, PETRI_PLACES=438, PETRI_TRANSITIONS=460} [2022-01-19 07:01:41,832 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 182 predicate places. [2022-01-19 07:01:41,832 INFO L470 AbstractCegarLoop]: Abstraction has has 438 places, 460 transitions, 2806 flow [2022-01-19 07:01:41,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:41,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:41,833 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:41,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 07:01:41,836 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:41,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:41,836 INFO L85 PathProgramCache]: Analyzing trace with hash -854273631, now seen corresponding path program 6 times [2022-01-19 07:01:41,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:41,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816137957] [2022-01-19 07:01:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:41,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:41,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:41,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816137957] [2022-01-19 07:01:41,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816137957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:41,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:41,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:41,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411207807] [2022-01-19 07:01:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:41,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:41,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:41,930 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:41,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 460 transitions, 2806 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:41,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:41,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:41,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:43,025 INFO L129 PetriNetUnfolder]: 1414/6351 cut-off events. [2022-01-19 07:01:43,025 INFO L130 PetriNetUnfolder]: For 29087/29220 co-relation queries the response was YES. [2022-01-19 07:01:43,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21474 conditions, 6351 events. 1414/6351 cut-off events. For 29087/29220 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 75858 event pairs, 586 based on Foata normal form. 5/6104 useless extension candidates. Maximal degree in co-relation 21365. Up to 1814 conditions per place. [2022-01-19 07:01:43,111 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 185 selfloop transitions, 76 changer transitions 16/528 dead transitions. [2022-01-19 07:01:43,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 528 transitions, 4194 flow [2022-01-19 07:01:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:01:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:01:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 07:01:43,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 07:01:43,115 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 07:01:43,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 07:01:43,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:43,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 07:01:43,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:43,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:43,126 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:43,126 INFO L186 Difference]: Start difference. First operand has 438 places, 460 transitions, 2806 flow. Second operand 17 states and 4265 transitions. [2022-01-19 07:01:43,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 528 transitions, 4194 flow [2022-01-19 07:01:43,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 528 transitions, 3998 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:43,267 INFO L242 Difference]: Finished difference. Result has 460 places, 487 transitions, 3408 flow [2022-01-19 07:01:43,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2640, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3408, PETRI_PLACES=460, PETRI_TRANSITIONS=487} [2022-01-19 07:01:43,268 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 204 predicate places. [2022-01-19 07:01:43,269 INFO L470 AbstractCegarLoop]: Abstraction has has 460 places, 487 transitions, 3408 flow [2022-01-19 07:01:43,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:43,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:43,269 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:43,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 07:01:43,270 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1348829887, now seen corresponding path program 7 times [2022-01-19 07:01:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:43,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257122248] [2022-01-19 07:01:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:43,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:43,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:43,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257122248] [2022-01-19 07:01:43,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257122248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:43,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:43,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:43,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766705793] [2022-01-19 07:01:43,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:43,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:43,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:43,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:43,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:43,354 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:43,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 487 transitions, 3408 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:43,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:43,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:43,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:44,566 INFO L129 PetriNetUnfolder]: 1423/6554 cut-off events. [2022-01-19 07:01:44,567 INFO L130 PetriNetUnfolder]: For 37589/37775 co-relation queries the response was YES. [2022-01-19 07:01:44,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22781 conditions, 6554 events. 1423/6554 cut-off events. For 37589/37775 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 78659 event pairs, 594 based on Foata normal form. 24/6327 useless extension candidates. Maximal degree in co-relation 22663. Up to 1825 conditions per place. [2022-01-19 07:01:44,638 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 170 selfloop transitions, 98 changer transitions 23/542 dead transitions. [2022-01-19 07:01:44,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 542 transitions, 4530 flow [2022-01-19 07:01:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:01:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:01:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:01:44,641 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:01:44,641 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:01:44,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:01:44,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:44,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:01:44,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:44,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:44,650 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:44,650 INFO L186 Difference]: Start difference. First operand has 460 places, 487 transitions, 3408 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:01:44,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 542 transitions, 4530 flow [2022-01-19 07:01:44,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 542 transitions, 4224 flow, removed 153 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:44,805 INFO L242 Difference]: Finished difference. Result has 481 places, 499 transitions, 3613 flow [2022-01-19 07:01:44,805 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3148, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3613, PETRI_PLACES=481, PETRI_TRANSITIONS=499} [2022-01-19 07:01:44,805 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 225 predicate places. [2022-01-19 07:01:44,806 INFO L470 AbstractCegarLoop]: Abstraction has has 481 places, 499 transitions, 3613 flow [2022-01-19 07:01:44,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:44,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:44,806 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:44,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 07:01:44,806 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1324436189, now seen corresponding path program 8 times [2022-01-19 07:01:44,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:44,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181000041] [2022-01-19 07:01:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:44,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:44,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:44,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181000041] [2022-01-19 07:01:44,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181000041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:44,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:44,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:44,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373520744] [2022-01-19 07:01:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:44,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:44,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:44,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:44,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:44,895 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:44,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 499 transitions, 3613 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:44,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:44,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:44,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:46,028 INFO L129 PetriNetUnfolder]: 1455/6847 cut-off events. [2022-01-19 07:01:46,028 INFO L130 PetriNetUnfolder]: For 41796/41938 co-relation queries the response was YES. [2022-01-19 07:01:46,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24229 conditions, 6847 events. 1455/6847 cut-off events. For 41796/41938 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 84051 event pairs, 579 based on Foata normal form. 11/6607 useless extension candidates. Maximal degree in co-relation 24104. Up to 1825 conditions per place. [2022-01-19 07:01:46,122 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 215 selfloop transitions, 83 changer transitions 23/572 dead transitions. [2022-01-19 07:01:46,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 572 transitions, 5227 flow [2022-01-19 07:01:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:01:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:01:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5261 transitions. [2022-01-19 07:01:46,126 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875957375957376 [2022-01-19 07:01:46,126 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5261 transitions. [2022-01-19 07:01:46,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5261 transitions. [2022-01-19 07:01:46,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:46,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5261 transitions. [2022-01-19 07:01:46,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.52380952380952) internal successors, (5261), 21 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:46,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:46,138 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:46,139 INFO L186 Difference]: Start difference. First operand has 481 places, 499 transitions, 3613 flow. Second operand 21 states and 5261 transitions. [2022-01-19 07:01:46,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 572 transitions, 5227 flow [2022-01-19 07:01:46,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 572 transitions, 5086 flow, removed 51 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:46,462 INFO L242 Difference]: Finished difference. Result has 510 places, 526 transitions, 4302 flow [2022-01-19 07:01:46,463 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3482, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4302, PETRI_PLACES=510, PETRI_TRANSITIONS=526} [2022-01-19 07:01:46,463 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 254 predicate places. [2022-01-19 07:01:46,465 INFO L470 AbstractCegarLoop]: Abstraction has has 510 places, 526 transitions, 4302 flow [2022-01-19 07:01:46,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:46,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:46,465 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:46,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 07:01:46,466 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:46,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:46,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1929026691, now seen corresponding path program 9 times [2022-01-19 07:01:46,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:46,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572992901] [2022-01-19 07:01:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:46,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:46,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:46,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572992901] [2022-01-19 07:01:46,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572992901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:46,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:46,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:46,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886274440] [2022-01-19 07:01:46,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:46,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:46,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:46,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:46,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:46,545 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:46,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 526 transitions, 4302 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:46,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:46,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:46,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:47,919 INFO L129 PetriNetUnfolder]: 1500/7096 cut-off events. [2022-01-19 07:01:47,919 INFO L130 PetriNetUnfolder]: For 54862/55019 co-relation queries the response was YES. [2022-01-19 07:01:48,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26457 conditions, 7096 events. 1500/7096 cut-off events. For 54862/55019 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 87331 event pairs, 522 based on Foata normal form. 4/6857 useless extension candidates. Maximal degree in co-relation 26319. Up to 1456 conditions per place. [2022-01-19 07:01:48,030 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 236 selfloop transitions, 133 changer transitions 26/646 dead transitions. [2022-01-19 07:01:48,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 646 transitions, 6495 flow [2022-01-19 07:01:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 07:01:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 07:01:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6012 transitions. [2022-01-19 07:01:48,034 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758741258741258 [2022-01-19 07:01:48,034 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6012 transitions. [2022-01-19 07:01:48,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6012 transitions. [2022-01-19 07:01:48,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:48,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6012 transitions. [2022-01-19 07:01:48,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.5) internal successors, (6012), 24 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:48,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:48,044 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:48,044 INFO L186 Difference]: Start difference. First operand has 510 places, 526 transitions, 4302 flow. Second operand 24 states and 6012 transitions. [2022-01-19 07:01:48,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 646 transitions, 6495 flow [2022-01-19 07:01:48,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 646 transitions, 6175 flow, removed 160 selfloop flow, removed 2 redundant places. [2022-01-19 07:01:48,311 INFO L242 Difference]: Finished difference. Result has 548 places, 552 transitions, 5048 flow [2022-01-19 07:01:48,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5048, PETRI_PLACES=548, PETRI_TRANSITIONS=552} [2022-01-19 07:01:48,312 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 292 predicate places. [2022-01-19 07:01:48,312 INFO L470 AbstractCegarLoop]: Abstraction has has 548 places, 552 transitions, 5048 flow [2022-01-19 07:01:48,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:48,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:48,313 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:48,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 07:01:48,313 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 625378761, now seen corresponding path program 10 times [2022-01-19 07:01:48,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:48,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292189451] [2022-01-19 07:01:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:48,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:48,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:48,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292189451] [2022-01-19 07:01:48,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292189451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:48,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:48,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:48,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147724387] [2022-01-19 07:01:48,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:48,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:48,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:48,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:48,396 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:48,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 552 transitions, 5048 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:48,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:48,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:48,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:49,945 INFO L129 PetriNetUnfolder]: 1534/7181 cut-off events. [2022-01-19 07:01:49,946 INFO L130 PetriNetUnfolder]: For 63086/63258 co-relation queries the response was YES. [2022-01-19 07:01:50,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28394 conditions, 7181 events. 1534/7181 cut-off events. For 63086/63258 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 88874 event pairs, 628 based on Foata normal form. 2/6918 useless extension candidates. Maximal degree in co-relation 28238. Up to 1963 conditions per place. [2022-01-19 07:01:50,080 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 242 selfloop transitions, 97 changer transitions 17/607 dead transitions. [2022-01-19 07:01:50,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 607 transitions, 6620 flow [2022-01-19 07:01:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:01:50,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:01:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4515 transitions. [2022-01-19 07:01:50,084 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.877039627039627 [2022-01-19 07:01:50,084 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4515 transitions. [2022-01-19 07:01:50,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4515 transitions. [2022-01-19 07:01:50,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:50,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4515 transitions. [2022-01-19 07:01:50,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.83333333333334) internal successors, (4515), 18 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:50,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:50,092 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:50,092 INFO L186 Difference]: Start difference. First operand has 548 places, 552 transitions, 5048 flow. Second operand 18 states and 4515 transitions. [2022-01-19 07:01:50,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 607 transitions, 6620 flow [2022-01-19 07:01:50,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 607 transitions, 6387 flow, removed 90 selfloop flow, removed 4 redundant places. [2022-01-19 07:01:50,476 INFO L242 Difference]: Finished difference. Result has 567 places, 571 transitions, 5594 flow [2022-01-19 07:01:50,477 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4836, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5594, PETRI_PLACES=567, PETRI_TRANSITIONS=571} [2022-01-19 07:01:50,477 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 311 predicate places. [2022-01-19 07:01:50,478 INFO L470 AbstractCegarLoop]: Abstraction has has 567 places, 571 transitions, 5594 flow [2022-01-19 07:01:50,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:50,478 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:50,478 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:50,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 07:01:50,478 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:50,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:50,479 INFO L85 PathProgramCache]: Analyzing trace with hash 804127363, now seen corresponding path program 11 times [2022-01-19 07:01:50,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:50,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38244174] [2022-01-19 07:01:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:50,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:50,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:50,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38244174] [2022-01-19 07:01:50,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38244174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:50,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:50,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:50,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601009200] [2022-01-19 07:01:50,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:50,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:50,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:50,559 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:50,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 571 transitions, 5594 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:50,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:50,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:50,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:52,058 INFO L129 PetriNetUnfolder]: 1540/7388 cut-off events. [2022-01-19 07:01:52,058 INFO L130 PetriNetUnfolder]: For 57855/58015 co-relation queries the response was YES. [2022-01-19 07:01:52,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28889 conditions, 7388 events. 1540/7388 cut-off events. For 57855/58015 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 92344 event pairs, 601 based on Foata normal form. 11/7143 useless extension candidates. Maximal degree in co-relation 28727. Up to 2002 conditions per place. [2022-01-19 07:01:52,188 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 241 selfloop transitions, 105 changer transitions 19/616 dead transitions. [2022-01-19 07:01:52,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 616 transitions, 6936 flow [2022-01-19 07:01:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:01:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:01:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 07:01:52,191 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 07:01:52,191 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 07:01:52,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 07:01:52,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:52,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 07:01:52,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:52,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:52,200 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:52,200 INFO L186 Difference]: Start difference. First operand has 567 places, 571 transitions, 5594 flow. Second operand 17 states and 4265 transitions. [2022-01-19 07:01:52,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 616 transitions, 6936 flow [2022-01-19 07:01:52,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 616 transitions, 6665 flow, removed 134 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:52,704 INFO L242 Difference]: Finished difference. Result has 585 places, 585 transitions, 5908 flow [2022-01-19 07:01:52,704 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=5337, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5908, PETRI_PLACES=585, PETRI_TRANSITIONS=585} [2022-01-19 07:01:52,704 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 329 predicate places. [2022-01-19 07:01:52,705 INFO L470 AbstractCegarLoop]: Abstraction has has 585 places, 585 transitions, 5908 flow [2022-01-19 07:01:52,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:52,705 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:52,705 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:52,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 07:01:52,705 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:52,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:52,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1401213629, now seen corresponding path program 12 times [2022-01-19 07:01:52,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:52,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338195044] [2022-01-19 07:01:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:52,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:52,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:52,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338195044] [2022-01-19 07:01:52,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338195044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:52,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:52,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:52,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496425431] [2022-01-19 07:01:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:52,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:52,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:52,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:52,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:52,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 585 transitions, 5908 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:52,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:52,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:52,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:54,562 INFO L129 PetriNetUnfolder]: 1578/7867 cut-off events. [2022-01-19 07:01:54,562 INFO L130 PetriNetUnfolder]: For 60699/60859 co-relation queries the response was YES. [2022-01-19 07:01:54,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30554 conditions, 7867 events. 1578/7867 cut-off events. For 60699/60859 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 100709 event pairs, 614 based on Foata normal form. 11/7616 useless extension candidates. Maximal degree in co-relation 30387. Up to 2039 conditions per place. [2022-01-19 07:01:54,674 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 231 selfloop transitions, 143 changer transitions 19/644 dead transitions. [2022-01-19 07:01:54,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 644 transitions, 7502 flow [2022-01-19 07:01:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 07:01:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 07:01:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5008 transitions. [2022-01-19 07:01:54,686 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755244755244755 [2022-01-19 07:01:54,687 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5008 transitions. [2022-01-19 07:01:54,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5008 transitions. [2022-01-19 07:01:54,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:54,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5008 transitions. [2022-01-19 07:01:54,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.4) internal successors, (5008), 20 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:54,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:54,702 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:54,702 INFO L186 Difference]: Start difference. First operand has 585 places, 585 transitions, 5908 flow. Second operand 20 states and 5008 transitions. [2022-01-19 07:01:54,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 644 transitions, 7502 flow [2022-01-19 07:01:55,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 644 transitions, 7338 flow, removed 55 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:55,148 INFO L242 Difference]: Finished difference. Result has 610 places, 605 transitions, 6606 flow [2022-01-19 07:01:55,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=5760, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6606, PETRI_PLACES=610, PETRI_TRANSITIONS=605} [2022-01-19 07:01:55,149 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 354 predicate places. [2022-01-19 07:01:55,149 INFO L470 AbstractCegarLoop]: Abstraction has has 610 places, 605 transitions, 6606 flow [2022-01-19 07:01:55,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:55,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:55,150 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:55,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 07:01:55,150 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1933410467, now seen corresponding path program 13 times [2022-01-19 07:01:55,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:55,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016840183] [2022-01-19 07:01:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:55,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:55,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:55,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016840183] [2022-01-19 07:01:55,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016840183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:55,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:55,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:55,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437908960] [2022-01-19 07:01:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:55,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:55,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:55,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:55,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:55,231 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:55,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 605 transitions, 6606 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:55,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:55,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:55,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:57,070 INFO L129 PetriNetUnfolder]: 1575/7784 cut-off events. [2022-01-19 07:01:57,070 INFO L130 PetriNetUnfolder]: For 64655/64815 co-relation queries the response was YES. [2022-01-19 07:01:57,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31003 conditions, 7784 events. 1575/7784 cut-off events. For 64655/64815 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 99073 event pairs, 614 based on Foata normal form. 11/7534 useless extension candidates. Maximal degree in co-relation 30827. Up to 2046 conditions per place. [2022-01-19 07:01:57,177 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 238 selfloop transitions, 134 changer transitions 22/645 dead transitions. [2022-01-19 07:01:57,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 645 transitions, 7839 flow [2022-01-19 07:01:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:01:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:01:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:01:57,179 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:01:57,179 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:01:57,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:01:57,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:57,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:01:57,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:57,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:57,186 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:57,186 INFO L186 Difference]: Start difference. First operand has 610 places, 605 transitions, 6606 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:01:57,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 645 transitions, 7839 flow [2022-01-19 07:01:57,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 645 transitions, 7609 flow, removed 88 selfloop flow, removed 3 redundant places. [2022-01-19 07:01:57,672 INFO L242 Difference]: Finished difference. Result has 629 places, 614 transitions, 6933 flow [2022-01-19 07:01:57,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6408, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6933, PETRI_PLACES=629, PETRI_TRANSITIONS=614} [2022-01-19 07:01:57,672 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 373 predicate places. [2022-01-19 07:01:57,672 INFO L470 AbstractCegarLoop]: Abstraction has has 629 places, 614 transitions, 6933 flow [2022-01-19 07:01:57,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:57,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:57,673 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:01:57,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 07:01:57,673 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:01:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash -371423587, now seen corresponding path program 14 times [2022-01-19 07:01:57,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:57,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145401977] [2022-01-19 07:01:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:57,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:01:57,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:57,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145401977] [2022-01-19 07:01:57,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145401977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:57,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:57,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:01:57,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304917179] [2022-01-19 07:01:57,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:57,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:01:57,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:57,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:01:57,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:01:57,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:01:57,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 614 transitions, 6933 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:57,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:57,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:01:57,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:59,684 INFO L129 PetriNetUnfolder]: 1610/7909 cut-off events. [2022-01-19 07:01:59,684 INFO L130 PetriNetUnfolder]: For 64491/64651 co-relation queries the response was YES. [2022-01-19 07:01:59,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32018 conditions, 7909 events. 1610/7909 cut-off events. For 64491/64651 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 101060 event pairs, 601 based on Foata normal form. 4/7655 useless extension candidates. Maximal degree in co-relation 31837. Up to 2020 conditions per place. [2022-01-19 07:01:59,786 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 307 selfloop transitions, 110 changer transitions 23/691 dead transitions. [2022-01-19 07:01:59,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 691 transitions, 8943 flow [2022-01-19 07:01:59,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 07:01:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 07:01:59,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5012 transitions. [2022-01-19 07:01:59,788 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762237762237762 [2022-01-19 07:01:59,789 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5012 transitions. [2022-01-19 07:01:59,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5012 transitions. [2022-01-19 07:01:59,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:59,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5012 transitions. [2022-01-19 07:01:59,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.6) internal successors, (5012), 20 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:59,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:59,795 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:01:59,795 INFO L186 Difference]: Start difference. First operand has 629 places, 614 transitions, 6933 flow. Second operand 20 states and 5012 transitions. [2022-01-19 07:01:59,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 691 transitions, 8943 flow [2022-01-19 07:02:00,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 643 places, 691 transitions, 8795 flow, removed 45 selfloop flow, removed 3 redundant places. [2022-01-19 07:02:00,250 INFO L242 Difference]: Finished difference. Result has 657 places, 641 transitions, 7750 flow [2022-01-19 07:02:00,251 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6791, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7750, PETRI_PLACES=657, PETRI_TRANSITIONS=641} [2022-01-19 07:02:00,251 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 401 predicate places. [2022-01-19 07:02:00,251 INFO L470 AbstractCegarLoop]: Abstraction has has 657 places, 641 transitions, 7750 flow [2022-01-19 07:02:00,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:00,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:00,251 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:00,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 07:02:00,252 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:00,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1634434539, now seen corresponding path program 15 times [2022-01-19 07:02:00,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:00,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851794420] [2022-01-19 07:02:00,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:00,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:00,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:00,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851794420] [2022-01-19 07:02:00,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851794420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:00,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:00,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:00,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451477939] [2022-01-19 07:02:00,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:00,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:00,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:00,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:00,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:00,318 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:00,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 641 transitions, 7750 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:00,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:00,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:00,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:02,437 INFO L129 PetriNetUnfolder]: 1646/8326 cut-off events. [2022-01-19 07:02:02,437 INFO L130 PetriNetUnfolder]: For 76832/76992 co-relation queries the response was YES. [2022-01-19 07:02:02,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34290 conditions, 8326 events. 1646/8326 cut-off events. For 76832/76992 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 108232 event pairs, 602 based on Foata normal form. 4/8079 useless extension candidates. Maximal degree in co-relation 34097. Up to 2022 conditions per place. [2022-01-19 07:02:02,557 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 270 selfloop transitions, 162 changer transitions 23/706 dead transitions. [2022-01-19 07:02:02,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 676 places, 706 transitions, 9565 flow [2022-01-19 07:02:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 07:02:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 07:02:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5505 transitions. [2022-01-19 07:02:02,560 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8749205340114431 [2022-01-19 07:02:02,560 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5505 transitions. [2022-01-19 07:02:02,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5505 transitions. [2022-01-19 07:02:02,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:02,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5505 transitions. [2022-01-19 07:02:02,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.22727272727272) internal successors, (5505), 22 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:02,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:02,566 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:02,567 INFO L186 Difference]: Start difference. First operand has 657 places, 641 transitions, 7750 flow. Second operand 22 states and 5505 transitions. [2022-01-19 07:02:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 676 places, 706 transitions, 9565 flow [2022-01-19 07:02:03,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 673 places, 706 transitions, 9157 flow, removed 174 selfloop flow, removed 3 redundant places. [2022-01-19 07:02:03,137 INFO L242 Difference]: Finished difference. Result has 685 places, 665 transitions, 8427 flow [2022-01-19 07:02:03,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=7456, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8427, PETRI_PLACES=685, PETRI_TRANSITIONS=665} [2022-01-19 07:02:03,138 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 429 predicate places. [2022-01-19 07:02:03,138 INFO L470 AbstractCegarLoop]: Abstraction has has 685 places, 665 transitions, 8427 flow [2022-01-19 07:02:03,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:03,139 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:03,139 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:03,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 07:02:03,139 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:03,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:03,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1823746883, now seen corresponding path program 16 times [2022-01-19 07:02:03,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:03,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185947461] [2022-01-19 07:02:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:03,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:03,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:03,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185947461] [2022-01-19 07:02:03,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185947461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:03,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:03,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:03,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915342464] [2022-01-19 07:02:03,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:03,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:03,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:03,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:03,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:03,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:03,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 665 transitions, 8427 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:03,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:03,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:03,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:05,356 INFO L129 PetriNetUnfolder]: 1681/8660 cut-off events. [2022-01-19 07:02:05,357 INFO L130 PetriNetUnfolder]: For 80024/80184 co-relation queries the response was YES. [2022-01-19 07:02:05,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35589 conditions, 8660 events. 1681/8660 cut-off events. For 80024/80184 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 113685 event pairs, 609 based on Foata normal form. 4/8406 useless extension candidates. Maximal degree in co-relation 35386. Up to 2106 conditions per place. [2022-01-19 07:02:05,487 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 321 selfloop transitions, 131 changer transitions 16/719 dead transitions. [2022-01-19 07:02:05,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 699 places, 719 transitions, 10185 flow [2022-01-19 07:02:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:02:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:02:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4264 transitions. [2022-01-19 07:02:05,489 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8770053475935828 [2022-01-19 07:02:05,489 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4264 transitions. [2022-01-19 07:02:05,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4264 transitions. [2022-01-19 07:02:05,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:05,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4264 transitions. [2022-01-19 07:02:05,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.8235294117647) internal successors, (4264), 17 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:05,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:05,495 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:05,495 INFO L186 Difference]: Start difference. First operand has 685 places, 665 transitions, 8427 flow. Second operand 17 states and 4264 transitions. [2022-01-19 07:02:05,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 699 places, 719 transitions, 10185 flow [2022-01-19 07:02:06,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 695 places, 719 transitions, 9971 flow, removed 104 selfloop flow, removed 4 redundant places. [2022-01-19 07:02:06,280 INFO L242 Difference]: Finished difference. Result has 704 places, 685 transitions, 9050 flow [2022-01-19 07:02:06,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=8217, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9050, PETRI_PLACES=704, PETRI_TRANSITIONS=685} [2022-01-19 07:02:06,281 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 448 predicate places. [2022-01-19 07:02:06,282 INFO L470 AbstractCegarLoop]: Abstraction has has 704 places, 685 transitions, 9050 flow [2022-01-19 07:02:06,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:06,282 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:06,282 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:06,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 07:02:06,282 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:06,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:06,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1612718341, now seen corresponding path program 17 times [2022-01-19 07:02:06,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:06,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344159953] [2022-01-19 07:02:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:06,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:06,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:06,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344159953] [2022-01-19 07:02:06,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344159953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:06,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:06,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:06,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438982284] [2022-01-19 07:02:06,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:06,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:06,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:06,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:06,370 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:06,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 685 transitions, 9050 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:06,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:06,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:06,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:08,744 INFO L129 PetriNetUnfolder]: 1715/8923 cut-off events. [2022-01-19 07:02:08,744 INFO L130 PetriNetUnfolder]: For 84428/84588 co-relation queries the response was YES. [2022-01-19 07:02:08,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37177 conditions, 8923 events. 1715/8923 cut-off events. For 84428/84588 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 118154 event pairs, 603 based on Foata normal form. 4/8669 useless extension candidates. Maximal degree in co-relation 36968. Up to 2063 conditions per place. [2022-01-19 07:02:08,875 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 341 selfloop transitions, 134 changer transitions 21/747 dead transitions. [2022-01-19 07:02:08,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 747 transitions, 10970 flow [2022-01-19 07:02:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:02:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:02:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5258 transitions. [2022-01-19 07:02:08,877 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8754578754578755 [2022-01-19 07:02:08,877 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5258 transitions. [2022-01-19 07:02:08,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5258 transitions. [2022-01-19 07:02:08,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:08,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5258 transitions. [2022-01-19 07:02:08,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.38095238095238) internal successors, (5258), 21 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:08,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:08,884 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:08,884 INFO L186 Difference]: Start difference. First operand has 704 places, 685 transitions, 9050 flow. Second operand 21 states and 5258 transitions. [2022-01-19 07:02:08,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 747 transitions, 10970 flow [2022-01-19 07:02:09,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 747 transitions, 10773 flow, removed 97 selfloop flow, removed 3 redundant places. [2022-01-19 07:02:09,549 INFO L242 Difference]: Finished difference. Result has 730 places, 707 transitions, 9782 flow [2022-01-19 07:02:09,550 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=8857, PETRI_DIFFERENCE_MINUEND_PLACES=699, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9782, PETRI_PLACES=730, PETRI_TRANSITIONS=707} [2022-01-19 07:02:09,550 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 474 predicate places. [2022-01-19 07:02:09,551 INFO L470 AbstractCegarLoop]: Abstraction has has 730 places, 707 transitions, 9782 flow [2022-01-19 07:02:09,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:09,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:09,551 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:09,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 07:02:09,551 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:09,551 INFO L85 PathProgramCache]: Analyzing trace with hash 244749245, now seen corresponding path program 18 times [2022-01-19 07:02:09,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:09,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349869975] [2022-01-19 07:02:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:09,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:09,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:09,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:09,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349869975] [2022-01-19 07:02:09,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349869975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:09,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:09,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:09,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414834640] [2022-01-19 07:02:09,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:09,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:09,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:09,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:09,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:09,649 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:09,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 707 transitions, 9782 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:09,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:09,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:09,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:12,108 INFO L129 PetriNetUnfolder]: 1718/9061 cut-off events. [2022-01-19 07:02:12,108 INFO L130 PetriNetUnfolder]: For 88072/88232 co-relation queries the response was YES. [2022-01-19 07:02:12,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37998 conditions, 9061 events. 1718/9061 cut-off events. For 88072/88232 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 120556 event pairs, 610 based on Foata normal form. 4/8815 useless extension candidates. Maximal degree in co-relation 37780. Up to 2176 conditions per place. [2022-01-19 07:02:12,260 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 298 selfloop transitions, 181 changer transitions 22/752 dead transitions. [2022-01-19 07:02:12,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 743 places, 752 transitions, 11237 flow [2022-01-19 07:02:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:02:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:02:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4017 transitions. [2022-01-19 07:02:12,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778409090909091 [2022-01-19 07:02:12,263 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4017 transitions. [2022-01-19 07:02:12,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4017 transitions. [2022-01-19 07:02:12,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:12,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4017 transitions. [2022-01-19 07:02:12,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 251.0625) internal successors, (4017), 16 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:12,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:12,268 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:12,268 INFO L186 Difference]: Start difference. First operand has 730 places, 707 transitions, 9782 flow. Second operand 16 states and 4017 transitions. [2022-01-19 07:02:12,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 743 places, 752 transitions, 11237 flow [2022-01-19 07:02:13,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 739 places, 752 transitions, 11004 flow, removed 107 selfloop flow, removed 4 redundant places. [2022-01-19 07:02:13,020 INFO L242 Difference]: Finished difference. Result has 746 places, 715 transitions, 10163 flow [2022-01-19 07:02:13,021 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=9562, PETRI_DIFFERENCE_MINUEND_PLACES=724, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10163, PETRI_PLACES=746, PETRI_TRANSITIONS=715} [2022-01-19 07:02:13,021 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 490 predicate places. [2022-01-19 07:02:13,021 INFO L470 AbstractCegarLoop]: Abstraction has has 746 places, 715 transitions, 10163 flow [2022-01-19 07:02:13,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:13,022 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:13,022 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:13,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 07:02:13,022 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:13,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:13,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1572504923, now seen corresponding path program 19 times [2022-01-19 07:02:13,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:13,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164661420] [2022-01-19 07:02:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:13,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:13,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:13,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164661420] [2022-01-19 07:02:13,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164661420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:13,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:13,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:13,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336542934] [2022-01-19 07:02:13,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:13,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:13,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:13,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:13,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:13,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:13,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 715 transitions, 10163 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:13,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:13,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:13,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:15,521 INFO L129 PetriNetUnfolder]: 1723/9109 cut-off events. [2022-01-19 07:02:15,521 INFO L130 PetriNetUnfolder]: For 86759/86919 co-relation queries the response was YES. [2022-01-19 07:02:15,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38646 conditions, 9109 events. 1723/9109 cut-off events. For 86759/86919 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 121391 event pairs, 618 based on Foata normal form. 4/8854 useless extension candidates. Maximal degree in co-relation 38424. Up to 2183 conditions per place. [2022-01-19 07:02:15,669 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 352 selfloop transitions, 135 changer transitions 21/759 dead transitions. [2022-01-19 07:02:15,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 759 transitions, 11710 flow [2022-01-19 07:02:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:02:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:02:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 07:02:15,671 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 07:02:15,671 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 07:02:15,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 07:02:15,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:15,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 07:02:15,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:15,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:15,676 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:15,676 INFO L186 Difference]: Start difference. First operand has 746 places, 715 transitions, 10163 flow. Second operand 18 states and 4514 transitions. [2022-01-19 07:02:15,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 761 places, 759 transitions, 11710 flow [2022-01-19 07:02:16,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 756 places, 759 transitions, 11362 flow, removed 59 selfloop flow, removed 5 redundant places. [2022-01-19 07:02:16,494 INFO L242 Difference]: Finished difference. Result has 763 places, 727 transitions, 10454 flow [2022-01-19 07:02:16,495 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=9833, PETRI_DIFFERENCE_MINUEND_PLACES=739, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10454, PETRI_PLACES=763, PETRI_TRANSITIONS=727} [2022-01-19 07:02:16,495 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 507 predicate places. [2022-01-19 07:02:16,495 INFO L470 AbstractCegarLoop]: Abstraction has has 763 places, 727 transitions, 10454 flow [2022-01-19 07:02:16,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:16,496 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:16,496 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:16,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 07:02:16,496 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:16,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:16,496 INFO L85 PathProgramCache]: Analyzing trace with hash -993370193, now seen corresponding path program 20 times [2022-01-19 07:02:16,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:16,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389600526] [2022-01-19 07:02:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:16,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:16,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:16,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389600526] [2022-01-19 07:02:16,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389600526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:16,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:16,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:16,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6662326] [2022-01-19 07:02:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:16,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:16,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:16,581 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:16,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 727 transitions, 10454 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:16,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:16,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:16,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:19,067 INFO L129 PetriNetUnfolder]: 1723/9092 cut-off events. [2022-01-19 07:02:19,068 INFO L130 PetriNetUnfolder]: For 86517/86677 co-relation queries the response was YES. [2022-01-19 07:02:19,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38495 conditions, 9092 events. 1723/9092 cut-off events. For 86517/86677 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 120944 event pairs, 614 based on Foata normal form. 4/8843 useless extension candidates. Maximal degree in co-relation 38273. Up to 2193 conditions per place. [2022-01-19 07:02:19,339 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 339 selfloop transitions, 152 changer transitions 28/769 dead transitions. [2022-01-19 07:02:19,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 769 transitions, 11926 flow [2022-01-19 07:02:19,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:02:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:02:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 07:02:19,342 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 07:02:19,342 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 07:02:19,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 07:02:19,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:19,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 07:02:19,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:19,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:19,347 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:19,347 INFO L186 Difference]: Start difference. First operand has 763 places, 727 transitions, 10454 flow. Second operand 18 states and 4514 transitions. [2022-01-19 07:02:19,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 778 places, 769 transitions, 11926 flow [2022-01-19 07:02:20,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 769 transitions, 11812 flow, removed 57 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:20,046 INFO L242 Difference]: Finished difference. Result has 783 places, 735 transitions, 10935 flow [2022-01-19 07:02:20,047 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10342, PETRI_DIFFERENCE_MINUEND_PLACES=759, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10935, PETRI_PLACES=783, PETRI_TRANSITIONS=735} [2022-01-19 07:02:20,047 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 527 predicate places. [2022-01-19 07:02:20,047 INFO L470 AbstractCegarLoop]: Abstraction has has 783 places, 735 transitions, 10935 flow [2022-01-19 07:02:20,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:20,048 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:20,048 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:20,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 07:02:20,048 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1797839325, now seen corresponding path program 1 times [2022-01-19 07:02:20,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:20,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997683998] [2022-01-19 07:02:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:20,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:20,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997683998] [2022-01-19 07:02:20,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997683998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:20,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:20,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:02:20,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825394265] [2022-01-19 07:02:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:20,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:02:20,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:02:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:02:20,085 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 286 [2022-01-19 07:02:20,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 735 transitions, 10935 flow. Second operand has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:20,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:20,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 286 [2022-01-19 07:02:20,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:21,588 INFO L129 PetriNetUnfolder]: 659/6002 cut-off events. [2022-01-19 07:02:21,589 INFO L130 PetriNetUnfolder]: For 53722/54429 co-relation queries the response was YES. [2022-01-19 07:02:21,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23035 conditions, 6002 events. 659/6002 cut-off events. For 53722/54429 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77484 event pairs, 35 based on Foata normal form. 25/5848 useless extension candidates. Maximal degree in co-relation 22817. Up to 312 conditions per place. [2022-01-19 07:02:21,666 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 0 changer transitions 25/755 dead transitions. [2022-01-19 07:02:21,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 755 transitions, 11076 flow [2022-01-19 07:02:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:02:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:02:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2320 transitions. [2022-01-19 07:02:21,668 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013209013209014 [2022-01-19 07:02:21,668 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2320 transitions. [2022-01-19 07:02:21,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2320 transitions. [2022-01-19 07:02:21,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:21,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2320 transitions. [2022-01-19 07:02:21,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 257.77777777777777) internal successors, (2320), 9 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:21,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:21,671 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:21,671 INFO L186 Difference]: Start difference. First operand has 783 places, 735 transitions, 10935 flow. Second operand 9 states and 2320 transitions. [2022-01-19 07:02:21,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 755 transitions, 11076 flow [2022-01-19 07:02:22,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 755 transitions, 10877 flow, removed 62 selfloop flow, removed 4 redundant places. [2022-01-19 07:02:22,178 INFO L242 Difference]: Finished difference. Result has 791 places, 730 transitions, 10729 flow [2022-01-19 07:02:22,179 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10736, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10729, PETRI_PLACES=791, PETRI_TRANSITIONS=730} [2022-01-19 07:02:22,180 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 535 predicate places. [2022-01-19 07:02:22,180 INFO L470 AbstractCegarLoop]: Abstraction has has 791 places, 730 transitions, 10729 flow [2022-01-19 07:02:22,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:22,180 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:22,180 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:22,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 07:02:22,180 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:22,181 INFO L85 PathProgramCache]: Analyzing trace with hash 356499216, now seen corresponding path program 1 times [2022-01-19 07:02:22,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:22,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882631586] [2022-01-19 07:02:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:22,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:22,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:22,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882631586] [2022-01-19 07:02:22,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882631586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:22,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:22,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:02:22,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179034801] [2022-01-19 07:02:22,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:22,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:02:22,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:02:22,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:02:22,226 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 286 [2022-01-19 07:02:22,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 791 places, 730 transitions, 10729 flow. Second operand has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:22,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:22,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 286 [2022-01-19 07:02:22,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:23,171 INFO L129 PetriNetUnfolder]: 479/4086 cut-off events. [2022-01-19 07:02:23,172 INFO L130 PetriNetUnfolder]: For 35786/36082 co-relation queries the response was YES. [2022-01-19 07:02:23,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15554 conditions, 4086 events. 479/4086 cut-off events. For 35786/36082 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 49058 event pairs, 35 based on Foata normal form. 10/3954 useless extension candidates. Maximal degree in co-relation 15343. Up to 222 conditions per place. [2022-01-19 07:02:23,233 INFO L132 encePairwiseOnDemand]: 274/286 looper letters, 27 selfloop transitions, 1 changer transitions 32/762 dead transitions. [2022-01-19 07:02:23,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 794 places, 762 transitions, 10946 flow [2022-01-19 07:02:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 07:02:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 07:02:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3271 transitions. [2022-01-19 07:02:23,235 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8797740720817644 [2022-01-19 07:02:23,235 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3271 transitions. [2022-01-19 07:02:23,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3271 transitions. [2022-01-19 07:02:23,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:23,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3271 transitions. [2022-01-19 07:02:23,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 251.6153846153846) internal successors, (3271), 13 states have internal predecessors, (3271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:23,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:23,238 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:23,238 INFO L186 Difference]: Start difference. First operand has 791 places, 730 transitions, 10729 flow. Second operand 13 states and 3271 transitions. [2022-01-19 07:02:23,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 794 places, 762 transitions, 10946 flow [2022-01-19 07:02:23,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 768 places, 762 transitions, 10830 flow, removed 31 selfloop flow, removed 26 redundant places. [2022-01-19 07:02:23,609 INFO L242 Difference]: Finished difference. Result has 779 places, 730 transitions, 10646 flow [2022-01-19 07:02:23,610 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10621, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10646, PETRI_PLACES=779, PETRI_TRANSITIONS=730} [2022-01-19 07:02:23,610 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 523 predicate places. [2022-01-19 07:02:23,610 INFO L470 AbstractCegarLoop]: Abstraction has has 779 places, 730 transitions, 10646 flow [2022-01-19 07:02:23,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:23,610 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:23,611 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:23,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 07:02:23,611 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1720911886, now seen corresponding path program 1 times [2022-01-19 07:02:23,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:23,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627539080] [2022-01-19 07:02:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:23,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:23,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:23,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627539080] [2022-01-19 07:02:23,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627539080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:23,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:23,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:23,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102373579] [2022-01-19 07:02:23,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:23,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:23,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:23,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:23,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:23,682 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:23,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 730 transitions, 10646 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:23,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:23,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:23,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:25,496 INFO L129 PetriNetUnfolder]: 1174/6241 cut-off events. [2022-01-19 07:02:25,497 INFO L130 PetriNetUnfolder]: For 52447/52578 co-relation queries the response was YES. [2022-01-19 07:02:25,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24305 conditions, 6241 events. 1174/6241 cut-off events. For 52447/52578 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 77746 event pairs, 412 based on Foata normal form. 18/6090 useless extension candidates. Maximal degree in co-relation 24108. Up to 1878 conditions per place. [2022-01-19 07:02:25,603 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 375 selfloop transitions, 30 changer transitions 28/844 dead transitions. [2022-01-19 07:02:25,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 844 transitions, 12137 flow [2022-01-19 07:02:25,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 07:02:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 07:02:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6015 transitions. [2022-01-19 07:02:25,607 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8763111888111889 [2022-01-19 07:02:25,607 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6015 transitions. [2022-01-19 07:02:25,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6015 transitions. [2022-01-19 07:02:25,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:25,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6015 transitions. [2022-01-19 07:02:25,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.625) internal successors, (6015), 24 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:25,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:25,616 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:25,616 INFO L186 Difference]: Start difference. First operand has 779 places, 730 transitions, 10646 flow. Second operand 24 states and 6015 transitions. [2022-01-19 07:02:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 844 transitions, 12137 flow [2022-01-19 07:02:26,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 844 transitions, 12104 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-01-19 07:02:26,117 INFO L242 Difference]: Finished difference. Result has 801 places, 759 transitions, 10978 flow [2022-01-19 07:02:26,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10625, PETRI_DIFFERENCE_MINUEND_PLACES=758, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=10978, PETRI_PLACES=801, PETRI_TRANSITIONS=759} [2022-01-19 07:02:26,118 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 545 predicate places. [2022-01-19 07:02:26,119 INFO L470 AbstractCegarLoop]: Abstraction has has 801 places, 759 transitions, 10978 flow [2022-01-19 07:02:26,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:26,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:26,119 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:26,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 07:02:26,119 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1613400096, now seen corresponding path program 2 times [2022-01-19 07:02:26,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219974787] [2022-01-19 07:02:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:26,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:26,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:26,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219974787] [2022-01-19 07:02:26,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219974787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:26,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:26,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:26,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078124747] [2022-01-19 07:02:26,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:26,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:26,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:26,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:26,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:26,217 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:26,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 759 transitions, 10978 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:26,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:26,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:26,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:28,127 INFO L129 PetriNetUnfolder]: 1290/6605 cut-off events. [2022-01-19 07:02:28,127 INFO L130 PetriNetUnfolder]: For 62874/63000 co-relation queries the response was YES. [2022-01-19 07:02:28,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28557 conditions, 6605 events. 1290/6605 cut-off events. For 62874/63000 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 82883 event pairs, 458 based on Foata normal form. 13/6428 useless extension candidates. Maximal degree in co-relation 28350. Up to 2050 conditions per place. [2022-01-19 07:02:28,236 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 359 selfloop transitions, 45 changer transitions 19/834 dead transitions. [2022-01-19 07:02:28,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 834 transitions, 12429 flow [2022-01-19 07:02:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 07:02:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 07:02:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5008 transitions. [2022-01-19 07:02:28,238 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755244755244755 [2022-01-19 07:02:28,238 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5008 transitions. [2022-01-19 07:02:28,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5008 transitions. [2022-01-19 07:02:28,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:28,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5008 transitions. [2022-01-19 07:02:28,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.4) internal successors, (5008), 20 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:28,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:28,244 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:28,244 INFO L186 Difference]: Start difference. First operand has 801 places, 759 transitions, 10978 flow. Second operand 20 states and 5008 transitions. [2022-01-19 07:02:28,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 818 places, 834 transitions, 12429 flow [2022-01-19 07:02:28,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 816 places, 834 transitions, 12203 flow, removed 113 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:28,856 INFO L242 Difference]: Finished difference. Result has 831 places, 791 transitions, 11331 flow [2022-01-19 07:02:28,857 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10850, PETRI_DIFFERENCE_MINUEND_PLACES=797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=734, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11331, PETRI_PLACES=831, PETRI_TRANSITIONS=791} [2022-01-19 07:02:28,857 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 575 predicate places. [2022-01-19 07:02:28,858 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 791 transitions, 11331 flow [2022-01-19 07:02:28,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:28,858 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:28,858 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:28,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 07:02:28,858 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:28,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash 204801746, now seen corresponding path program 3 times [2022-01-19 07:02:28,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:28,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308921186] [2022-01-19 07:02:28,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:28,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:28,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:28,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308921186] [2022-01-19 07:02:28,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308921186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:28,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:28,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:28,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072025973] [2022-01-19 07:02:28,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:28,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:28,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:28,927 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:28,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 791 transitions, 11331 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:28,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:28,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:28,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:31,204 INFO L129 PetriNetUnfolder]: 1336/6926 cut-off events. [2022-01-19 07:02:31,204 INFO L130 PetriNetUnfolder]: For 69488/69631 co-relation queries the response was YES. [2022-01-19 07:02:31,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30714 conditions, 6926 events. 1336/6926 cut-off events. For 69488/69631 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 87563 event pairs, 516 based on Foata normal form. 21/6755 useless extension candidates. Maximal degree in co-relation 30493. Up to 2098 conditions per place. [2022-01-19 07:02:31,365 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 401 selfloop transitions, 42 changer transitions 22/876 dead transitions. [2022-01-19 07:02:31,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 876 transitions, 13150 flow [2022-01-19 07:02:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 07:02:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 07:02:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5012 transitions. [2022-01-19 07:02:31,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762237762237762 [2022-01-19 07:02:31,368 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5012 transitions. [2022-01-19 07:02:31,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5012 transitions. [2022-01-19 07:02:31,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:31,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5012 transitions. [2022-01-19 07:02:31,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.6) internal successors, (5012), 20 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:31,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:31,374 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:31,375 INFO L186 Difference]: Start difference. First operand has 831 places, 791 transitions, 11331 flow. Second operand 20 states and 5012 transitions. [2022-01-19 07:02:31,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 876 transitions, 13150 flow [2022-01-19 07:02:32,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 846 places, 876 transitions, 12860 flow, removed 145 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:32,242 INFO L242 Difference]: Finished difference. Result has 861 places, 823 transitions, 11712 flow [2022-01-19 07:02:32,243 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11193, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=791, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11712, PETRI_PLACES=861, PETRI_TRANSITIONS=823} [2022-01-19 07:02:32,243 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 605 predicate places. [2022-01-19 07:02:32,243 INFO L470 AbstractCegarLoop]: Abstraction has has 861 places, 823 transitions, 11712 flow [2022-01-19 07:02:32,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:32,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:32,244 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:32,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 07:02:32,244 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:32,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:32,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1676019516, now seen corresponding path program 4 times [2022-01-19 07:02:32,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:32,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391598666] [2022-01-19 07:02:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:32,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:32,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391598666] [2022-01-19 07:02:32,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391598666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:32,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:32,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:32,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287190076] [2022-01-19 07:02:32,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:32,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:32,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:32,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:32,308 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:32,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 823 transitions, 11712 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:32,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:32,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:32,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:34,450 INFO L129 PetriNetUnfolder]: 1381/7212 cut-off events. [2022-01-19 07:02:34,450 INFO L130 PetriNetUnfolder]: For 69132/69276 co-relation queries the response was YES. [2022-01-19 07:02:34,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31405 conditions, 7212 events. 1381/7212 cut-off events. For 69132/69276 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 92486 event pairs, 443 based on Foata normal form. 13/7039 useless extension candidates. Maximal degree in co-relation 31170. Up to 1903 conditions per place. [2022-01-19 07:02:34,583 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 423 selfloop transitions, 81 changer transitions 26/941 dead transitions. [2022-01-19 07:02:34,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 941 transitions, 13831 flow [2022-01-19 07:02:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 07:02:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 07:02:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6012 transitions. [2022-01-19 07:02:34,586 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758741258741258 [2022-01-19 07:02:34,586 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6012 transitions. [2022-01-19 07:02:34,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6012 transitions. [2022-01-19 07:02:34,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:34,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6012 transitions. [2022-01-19 07:02:34,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.5) internal successors, (6012), 24 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:34,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:34,593 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:34,593 INFO L186 Difference]: Start difference. First operand has 861 places, 823 transitions, 11712 flow. Second operand 24 states and 6012 transitions. [2022-01-19 07:02:34,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 941 transitions, 13831 flow [2022-01-19 07:02:35,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 880 places, 941 transitions, 13519 flow, removed 156 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:35,310 INFO L242 Difference]: Finished difference. Result has 900 places, 851 transitions, 12215 flow [2022-01-19 07:02:35,310 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11532, PETRI_DIFFERENCE_MINUEND_PLACES=857, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=823, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=12215, PETRI_PLACES=900, PETRI_TRANSITIONS=851} [2022-01-19 07:02:35,311 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 644 predicate places. [2022-01-19 07:02:35,311 INFO L470 AbstractCegarLoop]: Abstraction has has 900 places, 851 transitions, 12215 flow [2022-01-19 07:02:35,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:35,311 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:35,311 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:35,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 07:02:35,311 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:35,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:35,312 INFO L85 PathProgramCache]: Analyzing trace with hash -231405122, now seen corresponding path program 5 times [2022-01-19 07:02:35,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:35,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222426157] [2022-01-19 07:02:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:35,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:35,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:35,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222426157] [2022-01-19 07:02:35,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222426157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:35,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:35,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:35,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825180413] [2022-01-19 07:02:35,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:35,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:35,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:35,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:35,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:35,377 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:35,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 851 transitions, 12215 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:35,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:35,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:35,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:37,910 INFO L129 PetriNetUnfolder]: 1481/7642 cut-off events. [2022-01-19 07:02:37,910 INFO L130 PetriNetUnfolder]: For 75910/76068 co-relation queries the response was YES. [2022-01-19 07:02:38,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33967 conditions, 7642 events. 1481/7642 cut-off events. For 75910/76068 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 99210 event pairs, 481 based on Foata normal form. 36/7493 useless extension candidates. Maximal degree in co-relation 33713. Up to 2193 conditions per place. [2022-01-19 07:02:38,051 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 419 selfloop transitions, 86 changer transitions 24/940 dead transitions. [2022-01-19 07:02:38,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 919 places, 940 transitions, 14223 flow [2022-01-19 07:02:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 07:02:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 07:02:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5507 transitions. [2022-01-19 07:02:38,054 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752383979656707 [2022-01-19 07:02:38,054 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5507 transitions. [2022-01-19 07:02:38,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5507 transitions. [2022-01-19 07:02:38,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:38,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5507 transitions. [2022-01-19 07:02:38,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.3181818181818) internal successors, (5507), 22 states have internal predecessors, (5507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:38,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:38,060 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:38,060 INFO L186 Difference]: Start difference. First operand has 900 places, 851 transitions, 12215 flow. Second operand 22 states and 5507 transitions. [2022-01-19 07:02:38,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 919 places, 940 transitions, 14223 flow [2022-01-19 07:02:38,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 917 places, 940 transitions, 13999 flow, removed 112 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:38,925 INFO L242 Difference]: Finished difference. Result has 931 places, 883 transitions, 12803 flow [2022-01-19 07:02:38,926 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12079, PETRI_DIFFERENCE_MINUEND_PLACES=896, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12803, PETRI_PLACES=931, PETRI_TRANSITIONS=883} [2022-01-19 07:02:38,926 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 675 predicate places. [2022-01-19 07:02:38,926 INFO L470 AbstractCegarLoop]: Abstraction has has 931 places, 883 transitions, 12803 flow [2022-01-19 07:02:38,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:38,927 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:38,927 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:38,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 07:02:38,927 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:38,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash 946547592, now seen corresponding path program 6 times [2022-01-19 07:02:38,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:38,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332282034] [2022-01-19 07:02:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:38,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:38,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:38,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332282034] [2022-01-19 07:02:38,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332282034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:38,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:38,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:38,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552812563] [2022-01-19 07:02:38,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:38,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:38,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:38,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:38,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:38,994 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:38,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 883 transitions, 12803 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:38,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:38,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:38,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:41,633 INFO L129 PetriNetUnfolder]: 1538/7928 cut-off events. [2022-01-19 07:02:41,633 INFO L130 PetriNetUnfolder]: For 74116/74275 co-relation queries the response was YES. [2022-01-19 07:02:41,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35414 conditions, 7928 events. 1538/7928 cut-off events. For 74116/74275 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 103566 event pairs, 508 based on Foata normal form. 28/7762 useless extension candidates. Maximal degree in co-relation 35147. Up to 2275 conditions per place. [2022-01-19 07:02:41,779 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 428 selfloop transitions, 89 changer transitions 16/944 dead transitions. [2022-01-19 07:02:41,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 944 transitions, 14547 flow [2022-01-19 07:02:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:02:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:02:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 07:02:41,781 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 07:02:41,781 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 07:02:41,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 07:02:41,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:41,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 07:02:41,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:41,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:41,786 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:41,786 INFO L186 Difference]: Start difference. First operand has 931 places, 883 transitions, 12803 flow. Second operand 17 states and 4265 transitions. [2022-01-19 07:02:41,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 944 transitions, 14547 flow [2022-01-19 07:02:42,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 944 transitions, 14379 flow, removed 84 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:42,605 INFO L242 Difference]: Finished difference. Result has 952 places, 904 transitions, 13261 flow [2022-01-19 07:02:42,606 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12663, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13261, PETRI_PLACES=952, PETRI_TRANSITIONS=904} [2022-01-19 07:02:42,606 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 696 predicate places. [2022-01-19 07:02:42,606 INFO L470 AbstractCegarLoop]: Abstraction has has 952 places, 904 transitions, 13261 flow [2022-01-19 07:02:42,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:42,606 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:42,606 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:42,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 07:02:42,607 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:42,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:42,607 INFO L85 PathProgramCache]: Analyzing trace with hash 425111128, now seen corresponding path program 7 times [2022-01-19 07:02:42,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975633753] [2022-01-19 07:02:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:42,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:42,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975633753] [2022-01-19 07:02:42,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975633753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:42,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:42,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:42,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750456267] [2022-01-19 07:02:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:42,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:42,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:42,673 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:42,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 904 transitions, 13261 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:42,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:42,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:42,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:45,193 INFO L129 PetriNetUnfolder]: 1565/8073 cut-off events. [2022-01-19 07:02:45,193 INFO L130 PetriNetUnfolder]: For 77985/78148 co-relation queries the response was YES. [2022-01-19 07:02:45,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36588 conditions, 8073 events. 1565/8073 cut-off events. For 77985/78148 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 106323 event pairs, 521 based on Foata normal form. 32/7920 useless extension candidates. Maximal degree in co-relation 36313. Up to 2331 conditions per place. [2022-01-19 07:02:45,532 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 436 selfloop transitions, 104 changer transitions 14/965 dead transitions. [2022-01-19 07:02:45,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 965 transitions, 15016 flow [2022-01-19 07:02:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:02:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:02:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4014 transitions. [2022-01-19 07:02:45,535 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8771853146853147 [2022-01-19 07:02:45,535 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4014 transitions. [2022-01-19 07:02:45,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4014 transitions. [2022-01-19 07:02:45,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:45,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4014 transitions. [2022-01-19 07:02:45,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 250.875) internal successors, (4014), 16 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:45,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:45,540 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:45,540 INFO L186 Difference]: Start difference. First operand has 952 places, 904 transitions, 13261 flow. Second operand 16 states and 4014 transitions. [2022-01-19 07:02:45,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 965 transitions, 15016 flow [2022-01-19 07:02:46,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 965 transitions, 14886 flow, removed 65 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:46,458 INFO L242 Difference]: Finished difference. Result has 972 places, 922 transitions, 13689 flow [2022-01-19 07:02:46,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13135, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13689, PETRI_PLACES=972, PETRI_TRANSITIONS=922} [2022-01-19 07:02:46,469 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 716 predicate places. [2022-01-19 07:02:46,469 INFO L470 AbstractCegarLoop]: Abstraction has has 972 places, 922 transitions, 13689 flow [2022-01-19 07:02:46,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:46,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:46,470 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:46,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 07:02:46,470 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1029021466, now seen corresponding path program 8 times [2022-01-19 07:02:46,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:46,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927096210] [2022-01-19 07:02:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:46,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:46,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:46,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927096210] [2022-01-19 07:02:46,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927096210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:46,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:46,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:46,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010120709] [2022-01-19 07:02:46,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:46,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:46,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:46,549 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:46,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 922 transitions, 13689 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:46,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:46,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:46,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:49,480 INFO L129 PetriNetUnfolder]: 1600/8473 cut-off events. [2022-01-19 07:02:49,480 INFO L130 PetriNetUnfolder]: For 83808/83975 co-relation queries the response was YES. [2022-01-19 07:02:49,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38361 conditions, 8473 events. 1600/8473 cut-off events. For 83808/83975 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 113034 event pairs, 533 based on Foata normal form. 15/8299 useless extension candidates. Maximal degree in co-relation 38078. Up to 2269 conditions per place. [2022-01-19 07:02:49,660 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 460 selfloop transitions, 98 changer transitions 23/992 dead transitions. [2022-01-19 07:02:49,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 990 places, 992 transitions, 15742 flow [2022-01-19 07:02:49,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:02:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:02:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5261 transitions. [2022-01-19 07:02:49,663 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875957375957376 [2022-01-19 07:02:49,663 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5261 transitions. [2022-01-19 07:02:49,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5261 transitions. [2022-01-19 07:02:49,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:49,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5261 transitions. [2022-01-19 07:02:49,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.52380952380952) internal successors, (5261), 21 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:49,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:49,669 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:49,669 INFO L186 Difference]: Start difference. First operand has 972 places, 922 transitions, 13689 flow. Second operand 21 states and 5261 transitions. [2022-01-19 07:02:49,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 990 places, 992 transitions, 15742 flow [2022-01-19 07:02:50,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 987 places, 992 transitions, 15598 flow, removed 50 selfloop flow, removed 3 redundant places. [2022-01-19 07:02:50,579 INFO L242 Difference]: Finished difference. Result has 1001 places, 946 transitions, 14381 flow [2022-01-19 07:02:50,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13583, PETRI_DIFFERENCE_MINUEND_PLACES=967, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14381, PETRI_PLACES=1001, PETRI_TRANSITIONS=946} [2022-01-19 07:02:50,580 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 745 predicate places. [2022-01-19 07:02:50,580 INFO L470 AbstractCegarLoop]: Abstraction has has 1001 places, 946 transitions, 14381 flow [2022-01-19 07:02:50,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:50,580 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:50,581 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:50,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 07:02:50,581 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash 215260482, now seen corresponding path program 9 times [2022-01-19 07:02:50,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:50,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433901298] [2022-01-19 07:02:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:50,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:50,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:50,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433901298] [2022-01-19 07:02:50,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433901298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:50,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:50,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:50,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579573560] [2022-01-19 07:02:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:50,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:50,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:50,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:50,655 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:50,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1001 places, 946 transitions, 14381 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:50,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:50,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:50,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:53,858 INFO L129 PetriNetUnfolder]: 1600/8552 cut-off events. [2022-01-19 07:02:53,859 INFO L130 PetriNetUnfolder]: For 89441/89644 co-relation queries the response was YES. [2022-01-19 07:02:54,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39130 conditions, 8552 events. 1600/8552 cut-off events. For 89441/89644 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 114240 event pairs, 508 based on Foata normal form. 39/8405 useless extension candidates. Maximal degree in co-relation 38835. Up to 2369 conditions per place. [2022-01-19 07:02:54,056 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 449 selfloop transitions, 117 changer transitions 23/1000 dead transitions. [2022-01-19 07:02:54,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1016 places, 1000 transitions, 16143 flow [2022-01-19 07:02:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:02:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:02:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:02:54,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:02:54,058 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:02:54,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:02:54,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:54,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:02:54,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:54,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:54,063 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:54,063 INFO L186 Difference]: Start difference. First operand has 1001 places, 946 transitions, 14381 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:02:54,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1016 places, 1000 transitions, 16143 flow [2022-01-19 07:02:55,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 1000 transitions, 15939 flow, removed 102 selfloop flow, removed 2 redundant places. [2022-01-19 07:02:55,066 INFO L242 Difference]: Finished difference. Result has 1022 places, 956 transitions, 14694 flow [2022-01-19 07:02:55,067 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14191, PETRI_DIFFERENCE_MINUEND_PLACES=997, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=833, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14694, PETRI_PLACES=1022, PETRI_TRANSITIONS=956} [2022-01-19 07:02:55,067 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 766 predicate places. [2022-01-19 07:02:55,067 INFO L470 AbstractCegarLoop]: Abstraction has has 1022 places, 956 transitions, 14694 flow [2022-01-19 07:02:55,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:55,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:55,068 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:55,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 07:02:55,068 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -423495574, now seen corresponding path program 10 times [2022-01-19 07:02:55,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:55,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976964068] [2022-01-19 07:02:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:55,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:55,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:55,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976964068] [2022-01-19 07:02:55,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976964068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:55,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:55,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:55,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286362372] [2022-01-19 07:02:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:55,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:55,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:55,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:55,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:55,156 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:55,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 956 transitions, 14694 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:55,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:55,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:55,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:58,417 INFO L129 PetriNetUnfolder]: 1633/8830 cut-off events. [2022-01-19 07:02:58,418 INFO L130 PetriNetUnfolder]: For 92355/92543 co-relation queries the response was YES. [2022-01-19 07:02:58,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40511 conditions, 8830 events. 1633/8830 cut-off events. For 92355/92543 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 119087 event pairs, 537 based on Foata normal form. 15/8653 useless extension candidates. Maximal degree in co-relation 40209. Up to 2419 conditions per place. [2022-01-19 07:02:58,623 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 477 selfloop transitions, 107 changer transitions 15/1010 dead transitions. [2022-01-19 07:02:58,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1036 places, 1010 transitions, 16599 flow [2022-01-19 07:02:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:02:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:02:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 07:02:58,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 07:02:58,625 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 07:02:58,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 07:02:58,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:58,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 07:02:58,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:58,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:58,630 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:58,630 INFO L186 Difference]: Start difference. First operand has 1022 places, 956 transitions, 14694 flow. Second operand 17 states and 4265 transitions. [2022-01-19 07:02:58,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1036 places, 1010 transitions, 16599 flow [2022-01-19 07:02:59,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1032 places, 1010 transitions, 16415 flow, removed 48 selfloop flow, removed 4 redundant places. [2022-01-19 07:02:59,749 INFO L242 Difference]: Finished difference. Result has 1041 places, 977 transitions, 15244 flow [2022-01-19 07:02:59,750 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14526, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15244, PETRI_PLACES=1041, PETRI_TRANSITIONS=977} [2022-01-19 07:02:59,750 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 785 predicate places. [2022-01-19 07:02:59,750 INFO L470 AbstractCegarLoop]: Abstraction has has 1041 places, 977 transitions, 15244 flow [2022-01-19 07:02:59,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:59,751 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:59,751 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:02:59,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 07:02:59,751 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:02:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:59,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1996532382, now seen corresponding path program 11 times [2022-01-19 07:02:59,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:59,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562840999] [2022-01-19 07:02:59,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:59,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:02:59,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:59,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562840999] [2022-01-19 07:02:59,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562840999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:59,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:59,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:02:59,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316993654] [2022-01-19 07:02:59,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:59,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:02:59,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:59,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:02:59,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:02:59,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:02:59,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 977 transitions, 15244 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:02:59,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:59,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:02:59,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:03,068 INFO L129 PetriNetUnfolder]: 1636/8777 cut-off events. [2022-01-19 07:03:03,069 INFO L130 PetriNetUnfolder]: For 92457/92634 co-relation queries the response was YES. [2022-01-19 07:03:03,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41035 conditions, 8777 events. 1636/8777 cut-off events. For 92457/92634 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 118177 event pairs, 517 based on Foata normal form. 28/8602 useless extension candidates. Maximal degree in co-relation 40725. Up to 2441 conditions per place. [2022-01-19 07:03:03,280 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 462 selfloop transitions, 127 changer transitions 20/1020 dead transitions. [2022-01-19 07:03:03,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1056 places, 1020 transitions, 16913 flow [2022-01-19 07:03:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:03:03,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:03:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:03:03,282 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:03:03,282 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:03:03,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:03:03,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:03,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:03:03,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:03,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:03,287 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:03,287 INFO L186 Difference]: Start difference. First operand has 1041 places, 977 transitions, 15244 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:03:03,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1056 places, 1020 transitions, 16913 flow [2022-01-19 07:03:04,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1053 places, 1020 transitions, 16729 flow, removed 67 selfloop flow, removed 3 redundant places. [2022-01-19 07:03:04,596 INFO L242 Difference]: Finished difference. Result has 1060 places, 989 transitions, 15624 flow [2022-01-19 07:03:04,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15066, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=856, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15624, PETRI_PLACES=1060, PETRI_TRANSITIONS=989} [2022-01-19 07:03:04,598 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 804 predicate places. [2022-01-19 07:03:04,598 INFO L470 AbstractCegarLoop]: Abstraction has has 1060 places, 989 transitions, 15624 flow [2022-01-19 07:03:04,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:04,598 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:04,598 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:04,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 07:03:04,598 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:04,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1398421174, now seen corresponding path program 12 times [2022-01-19 07:03:04,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:04,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549861451] [2022-01-19 07:03:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:04,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:04,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:04,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:04,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549861451] [2022-01-19 07:03:04,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549861451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:04,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:04,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:04,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221961895] [2022-01-19 07:03:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:04,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:04,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:04,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:04,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:04,662 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:04,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1060 places, 989 transitions, 15624 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:04,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:04,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:04,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:08,233 INFO L129 PetriNetUnfolder]: 1635/9079 cut-off events. [2022-01-19 07:03:08,234 INFO L130 PetriNetUnfolder]: For 96515/96709 co-relation queries the response was YES. [2022-01-19 07:03:08,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41507 conditions, 9079 events. 1635/9079 cut-off events. For 96515/96709 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 123711 event pairs, 532 based on Foata normal form. 15/8904 useless extension candidates. Maximal degree in co-relation 41192. Up to 2431 conditions per place. [2022-01-19 07:03:08,499 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 480 selfloop transitions, 116 changer transitions 24/1031 dead transitions. [2022-01-19 07:03:08,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1075 places, 1031 transitions, 17288 flow [2022-01-19 07:03:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:03:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:03:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4515 transitions. [2022-01-19 07:03:08,502 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.877039627039627 [2022-01-19 07:03:08,502 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4515 transitions. [2022-01-19 07:03:08,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4515 transitions. [2022-01-19 07:03:08,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:08,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4515 transitions. [2022-01-19 07:03:08,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.83333333333334) internal successors, (4515), 18 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:08,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:08,507 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:08,507 INFO L186 Difference]: Start difference. First operand has 1060 places, 989 transitions, 15624 flow. Second operand 18 states and 4515 transitions. [2022-01-19 07:03:08,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1075 places, 1031 transitions, 17288 flow [2022-01-19 07:03:09,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1071 places, 1031 transitions, 17145 flow, removed 45 selfloop flow, removed 4 redundant places. [2022-01-19 07:03:09,795 INFO L242 Difference]: Finished difference. Result has 1078 places, 998 transitions, 15992 flow [2022-01-19 07:03:09,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15487, PETRI_DIFFERENCE_MINUEND_PLACES=1054, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=876, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15992, PETRI_PLACES=1078, PETRI_TRANSITIONS=998} [2022-01-19 07:03:09,796 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 822 predicate places. [2022-01-19 07:03:09,796 INFO L470 AbstractCegarLoop]: Abstraction has has 1078 places, 998 transitions, 15992 flow [2022-01-19 07:03:09,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:09,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:09,797 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:09,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 07:03:09,797 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:09,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:09,797 INFO L85 PathProgramCache]: Analyzing trace with hash 436524064, now seen corresponding path program 13 times [2022-01-19 07:03:09,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:09,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465601496] [2022-01-19 07:03:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:09,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:09,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:09,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465601496] [2022-01-19 07:03:09,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465601496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:09,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:09,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:09,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155067360] [2022-01-19 07:03:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:09,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:09,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:09,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:09,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1078 places, 998 transitions, 15992 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:09,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:09,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:09,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:13,305 INFO L129 PetriNetUnfolder]: 1734/9491 cut-off events. [2022-01-19 07:03:13,306 INFO L130 PetriNetUnfolder]: For 107430/107609 co-relation queries the response was YES. [2022-01-19 07:03:13,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44070 conditions, 9491 events. 1734/9491 cut-off events. For 107430/107609 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 129037 event pairs, 538 based on Foata normal form. 13/9318 useless extension candidates. Maximal degree in co-relation 43751. Up to 2415 conditions per place. [2022-01-19 07:03:13,540 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 509 selfloop transitions, 144 changer transitions 23/1087 dead transitions. [2022-01-19 07:03:13,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1097 places, 1087 transitions, 18411 flow [2022-01-19 07:03:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 07:03:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 07:03:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5505 transitions. [2022-01-19 07:03:13,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8749205340114431 [2022-01-19 07:03:13,542 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5505 transitions. [2022-01-19 07:03:13,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5505 transitions. [2022-01-19 07:03:13,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:13,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5505 transitions. [2022-01-19 07:03:13,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.22727272727272) internal successors, (5505), 22 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:13,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:13,549 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:13,549 INFO L186 Difference]: Start difference. First operand has 1078 places, 998 transitions, 15992 flow. Second operand 22 states and 5505 transitions. [2022-01-19 07:03:13,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1097 places, 1087 transitions, 18411 flow [2022-01-19 07:03:14,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1087 transitions, 18284 flow, removed 62 selfloop flow, removed 3 redundant places. [2022-01-19 07:03:14,990 INFO L242 Difference]: Finished difference. Result has 1108 places, 1030 transitions, 16933 flow [2022-01-19 07:03:14,991 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15867, PETRI_DIFFERENCE_MINUEND_PLACES=1073, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=875, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=16933, PETRI_PLACES=1108, PETRI_TRANSITIONS=1030} [2022-01-19 07:03:14,991 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 852 predicate places. [2022-01-19 07:03:14,992 INFO L470 AbstractCegarLoop]: Abstraction has has 1108 places, 1030 transitions, 16933 flow [2022-01-19 07:03:14,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:14,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:14,992 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:14,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 07:03:14,992 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:14,993 INFO L85 PathProgramCache]: Analyzing trace with hash -212568294, now seen corresponding path program 14 times [2022-01-19 07:03:14,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:14,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328314097] [2022-01-19 07:03:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:14,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:15,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:15,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328314097] [2022-01-19 07:03:15,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328314097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:15,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:15,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:15,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801837576] [2022-01-19 07:03:15,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:15,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:15,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:15,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:15,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:15,078 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:15,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1108 places, 1030 transitions, 16933 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:15,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:15,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:15,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:18,942 INFO L129 PetriNetUnfolder]: 1768/9802 cut-off events. [2022-01-19 07:03:18,943 INFO L130 PetriNetUnfolder]: For 117112/117283 co-relation queries the response was YES. [2022-01-19 07:03:19,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46342 conditions, 9802 events. 1768/9802 cut-off events. For 117112/117283 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 134752 event pairs, 586 based on Foata normal form. 13/9623 useless extension candidates. Maximal degree in co-relation 46011. Up to 2440 conditions per place. [2022-01-19 07:03:19,187 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 561 selfloop transitions, 106 changer transitions 21/1099 dead transitions. [2022-01-19 07:03:19,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1126 places, 1099 transitions, 19237 flow [2022-01-19 07:03:19,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:03:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:03:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5258 transitions. [2022-01-19 07:03:19,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8754578754578755 [2022-01-19 07:03:19,189 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5258 transitions. [2022-01-19 07:03:19,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5258 transitions. [2022-01-19 07:03:19,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:19,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5258 transitions. [2022-01-19 07:03:19,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.38095238095238) internal successors, (5258), 21 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:19,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:19,195 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:19,195 INFO L186 Difference]: Start difference. First operand has 1108 places, 1030 transitions, 16933 flow. Second operand 21 states and 5258 transitions. [2022-01-19 07:03:19,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1126 places, 1099 transitions, 19237 flow [2022-01-19 07:03:20,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1124 places, 1099 transitions, 19033 flow, removed 102 selfloop flow, removed 2 redundant places. [2022-01-19 07:03:20,637 INFO L242 Difference]: Finished difference. Result has 1138 places, 1054 transitions, 17606 flow [2022-01-19 07:03:20,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=16743, PETRI_DIFFERENCE_MINUEND_PLACES=1104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=17606, PETRI_PLACES=1138, PETRI_TRANSITIONS=1054} [2022-01-19 07:03:20,638 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 882 predicate places. [2022-01-19 07:03:20,638 INFO L470 AbstractCegarLoop]: Abstraction has has 1138 places, 1054 transitions, 17606 flow [2022-01-19 07:03:20,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:20,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:20,639 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:20,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 07:03:20,639 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:20,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:20,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1792130372, now seen corresponding path program 15 times [2022-01-19 07:03:20,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:20,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154494714] [2022-01-19 07:03:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:20,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:20,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:20,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154494714] [2022-01-19 07:03:20,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154494714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:20,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:20,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:20,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174140479] [2022-01-19 07:03:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:20,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:20,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:20,703 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:20,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1138 places, 1054 transitions, 17606 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:20,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:20,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:20,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:24,723 INFO L129 PetriNetUnfolder]: 1791/10041 cut-off events. [2022-01-19 07:03:24,724 INFO L130 PetriNetUnfolder]: For 122972/123143 co-relation queries the response was YES. [2022-01-19 07:03:24,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47673 conditions, 10041 events. 1791/10041 cut-off events. For 122972/123143 co-relation queries the response was YES. Maximal size of possible extension queue 907. Compared 139005 event pairs, 526 based on Foata normal form. 13/9868 useless extension candidates. Maximal degree in co-relation 47329. Up to 2511 conditions per place. [2022-01-19 07:03:24,992 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 530 selfloop transitions, 162 changer transitions 18/1121 dead transitions. [2022-01-19 07:03:24,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1153 places, 1121 transitions, 19829 flow [2022-01-19 07:03:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:03:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:03:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 07:03:24,994 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 07:03:24,994 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 07:03:24,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 07:03:24,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:24,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 07:03:24,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:24,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:24,999 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:24,999 INFO L186 Difference]: Start difference. First operand has 1138 places, 1054 transitions, 17606 flow. Second operand 18 states and 4511 transitions. [2022-01-19 07:03:24,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1153 places, 1121 transitions, 19829 flow [2022-01-19 07:03:26,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1151 places, 1121 transitions, 19627 flow, removed 101 selfloop flow, removed 2 redundant places. [2022-01-19 07:03:26,486 INFO L242 Difference]: Finished difference. Result has 1159 places, 1075 transitions, 18261 flow [2022-01-19 07:03:26,487 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=17406, PETRI_DIFFERENCE_MINUEND_PLACES=1134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=906, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18261, PETRI_PLACES=1159, PETRI_TRANSITIONS=1075} [2022-01-19 07:03:26,487 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 903 predicate places. [2022-01-19 07:03:26,487 INFO L470 AbstractCegarLoop]: Abstraction has has 1159 places, 1075 transitions, 18261 flow [2022-01-19 07:03:26,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:26,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:26,487 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:26,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 07:03:26,488 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 830839342, now seen corresponding path program 16 times [2022-01-19 07:03:26,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:26,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865475333] [2022-01-19 07:03:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:26,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:26,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:26,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865475333] [2022-01-19 07:03:26,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865475333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:26,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:26,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:26,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985864041] [2022-01-19 07:03:26,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:26,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:26,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:26,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:26,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:26,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1159 places, 1075 transitions, 18261 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:26,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:26,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:26,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:30,727 INFO L129 PetriNetUnfolder]: 1846/10267 cut-off events. [2022-01-19 07:03:30,727 INFO L130 PetriNetUnfolder]: For 129120/129291 co-relation queries the response was YES. [2022-01-19 07:03:30,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49767 conditions, 10267 events. 1846/10267 cut-off events. For 129120/129291 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 143121 event pairs, 525 based on Foata normal form. 13/10086 useless extension candidates. Maximal degree in co-relation 49416. Up to 2554 conditions per place. [2022-01-19 07:03:30,999 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 571 selfloop transitions, 135 changer transitions 16/1133 dead transitions. [2022-01-19 07:03:30,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1173 places, 1133 transitions, 20493 flow [2022-01-19 07:03:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:03:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:03:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4264 transitions. [2022-01-19 07:03:31,001 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8770053475935828 [2022-01-19 07:03:31,001 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4264 transitions. [2022-01-19 07:03:31,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4264 transitions. [2022-01-19 07:03:31,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:31,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4264 transitions. [2022-01-19 07:03:31,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.8235294117647) internal successors, (4264), 17 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:31,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:31,006 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:31,006 INFO L186 Difference]: Start difference. First operand has 1159 places, 1075 transitions, 18261 flow. Second operand 17 states and 4264 transitions. [2022-01-19 07:03:31,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1173 places, 1133 transitions, 20493 flow [2022-01-19 07:03:32,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1171 places, 1133 transitions, 20267 flow, removed 113 selfloop flow, removed 2 redundant places. [2022-01-19 07:03:32,672 INFO L242 Difference]: Finished difference. Result has 1180 places, 1096 transitions, 18898 flow [2022-01-19 07:03:32,673 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=18079, PETRI_DIFFERENCE_MINUEND_PLACES=1155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18898, PETRI_PLACES=1180, PETRI_TRANSITIONS=1096} [2022-01-19 07:03:32,673 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 924 predicate places. [2022-01-19 07:03:32,673 INFO L470 AbstractCegarLoop]: Abstraction has has 1180 places, 1096 transitions, 18898 flow [2022-01-19 07:03:32,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:32,674 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:32,674 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:32,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-19 07:03:32,674 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:32,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash 382049174, now seen corresponding path program 17 times [2022-01-19 07:03:32,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:32,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524247176] [2022-01-19 07:03:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:32,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:32,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:32,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524247176] [2022-01-19 07:03:32,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524247176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:32,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:32,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:32,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179856222] [2022-01-19 07:03:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:32,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:32,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:32,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:32,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:32,741 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:32,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1180 places, 1096 transitions, 18898 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:32,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:32,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:32,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:37,013 INFO L129 PetriNetUnfolder]: 1869/10467 cut-off events. [2022-01-19 07:03:37,013 INFO L130 PetriNetUnfolder]: For 137038/137209 co-relation queries the response was YES. [2022-01-19 07:03:37,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51237 conditions, 10467 events. 1869/10467 cut-off events. For 137038/137209 co-relation queries the response was YES. Maximal size of possible extension queue 958. Compared 145793 event pairs, 578 based on Foata normal form. 13/10286 useless extension candidates. Maximal degree in co-relation 50878. Up to 2589 conditions per place. [2022-01-19 07:03:37,294 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 596 selfloop transitions, 127 changer transitions 17/1151 dead transitions. [2022-01-19 07:03:37,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1195 places, 1151 transitions, 21136 flow [2022-01-19 07:03:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:03:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:03:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 07:03:37,296 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 07:03:37,296 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 07:03:37,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 07:03:37,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:37,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 07:03:37,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:37,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:37,301 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:37,301 INFO L186 Difference]: Start difference. First operand has 1180 places, 1096 transitions, 18898 flow. Second operand 18 states and 4514 transitions. [2022-01-19 07:03:37,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1195 places, 1151 transitions, 21136 flow [2022-01-19 07:03:39,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1193 places, 1151 transitions, 20996 flow, removed 70 selfloop flow, removed 2 redundant places. [2022-01-19 07:03:39,026 INFO L242 Difference]: Finished difference. Result has 1201 places, 1115 transitions, 19566 flow [2022-01-19 07:03:39,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=18762, PETRI_DIFFERENCE_MINUEND_PLACES=1176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1096, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19566, PETRI_PLACES=1201, PETRI_TRANSITIONS=1115} [2022-01-19 07:03:39,027 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 945 predicate places. [2022-01-19 07:03:39,027 INFO L470 AbstractCegarLoop]: Abstraction has has 1201 places, 1115 transitions, 19566 flow [2022-01-19 07:03:39,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:39,027 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:39,027 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:39,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-19 07:03:39,027 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:39,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1365412372, now seen corresponding path program 18 times [2022-01-19 07:03:39,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677547276] [2022-01-19 07:03:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:39,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:39,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:39,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:39,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677547276] [2022-01-19 07:03:39,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677547276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:39,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:39,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:39,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160946015] [2022-01-19 07:03:39,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:39,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:39,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:39,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:39,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:39,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1201 places, 1115 transitions, 19566 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:39,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:39,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:39,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:43,403 INFO L129 PetriNetUnfolder]: 1872/10609 cut-off events. [2022-01-19 07:03:43,404 INFO L130 PetriNetUnfolder]: For 143882/144053 co-relation queries the response was YES. [2022-01-19 07:03:43,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52092 conditions, 10609 events. 1872/10609 cut-off events. For 143882/144053 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 148129 event pairs, 535 based on Foata normal form. 13/10435 useless extension candidates. Maximal degree in co-relation 51726. Up to 2615 conditions per place. [2022-01-19 07:03:43,703 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 554 selfloop transitions, 179 changer transitions 22/1166 dead transitions. [2022-01-19 07:03:43,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1214 places, 1166 transitions, 21554 flow [2022-01-19 07:03:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:03:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:03:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4017 transitions. [2022-01-19 07:03:43,705 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778409090909091 [2022-01-19 07:03:43,705 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4017 transitions. [2022-01-19 07:03:43,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4017 transitions. [2022-01-19 07:03:43,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:43,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4017 transitions. [2022-01-19 07:03:43,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 251.0625) internal successors, (4017), 16 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:43,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:43,710 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:43,710 INFO L186 Difference]: Start difference. First operand has 1201 places, 1115 transitions, 19566 flow. Second operand 16 states and 4017 transitions. [2022-01-19 07:03:43,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1214 places, 1166 transitions, 21554 flow [2022-01-19 07:03:45,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1212 places, 1166 transitions, 21376 flow, removed 89 selfloop flow, removed 2 redundant places. [2022-01-19 07:03:45,670 INFO L242 Difference]: Finished difference. Result has 1219 places, 1123 transitions, 19979 flow [2022-01-19 07:03:45,671 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=19390, PETRI_DIFFERENCE_MINUEND_PLACES=1197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19979, PETRI_PLACES=1219, PETRI_TRANSITIONS=1123} [2022-01-19 07:03:45,671 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 963 predicate places. [2022-01-19 07:03:45,671 INFO L470 AbstractCegarLoop]: Abstraction has has 1219 places, 1123 transitions, 19979 flow [2022-01-19 07:03:45,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:45,672 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:45,672 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:45,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-19 07:03:45,672 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash -192138724, now seen corresponding path program 19 times [2022-01-19 07:03:45,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:45,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258135418] [2022-01-19 07:03:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:45,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:45,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:45,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258135418] [2022-01-19 07:03:45,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258135418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:45,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:45,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:45,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243303762] [2022-01-19 07:03:45,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:45,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:45,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:45,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:45,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1219 places, 1123 transitions, 19979 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:45,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:45,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:45,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:50,269 INFO L129 PetriNetUnfolder]: 1891/10729 cut-off events. [2022-01-19 07:03:50,270 INFO L130 PetriNetUnfolder]: For 151412/151583 co-relation queries the response was YES. [2022-01-19 07:03:50,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53544 conditions, 10729 events. 1891/10729 cut-off events. For 151412/151583 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 151171 event pairs, 531 based on Foata normal form. 13/10543 useless extension candidates. Maximal degree in co-relation 53172. Up to 2636 conditions per place. [2022-01-19 07:03:50,559 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 585 selfloop transitions, 153 changer transitions 23/1172 dead transitions. [2022-01-19 07:03:50,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1234 places, 1172 transitions, 22084 flow [2022-01-19 07:03:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 07:03:50,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 07:03:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 07:03:50,561 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 07:03:50,561 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 07:03:50,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 07:03:50,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:50,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 07:03:50,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:50,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:50,566 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:50,566 INFO L186 Difference]: Start difference. First operand has 1219 places, 1123 transitions, 19979 flow. Second operand 18 states and 4514 transitions. [2022-01-19 07:03:50,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1234 places, 1172 transitions, 22084 flow [2022-01-19 07:03:52,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1229 places, 1172 transitions, 21779 flow, removed 36 selfloop flow, removed 5 redundant places. [2022-01-19 07:03:52,460 INFO L242 Difference]: Finished difference. Result has 1236 places, 1137 transitions, 20419 flow [2022-01-19 07:03:52,461 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=19692, PETRI_DIFFERENCE_MINUEND_PLACES=1212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=978, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20419, PETRI_PLACES=1236, PETRI_TRANSITIONS=1137} [2022-01-19 07:03:52,461 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 980 predicate places. [2022-01-19 07:03:52,461 INFO L470 AbstractCegarLoop]: Abstraction has has 1236 places, 1137 transitions, 20419 flow [2022-01-19 07:03:52,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:52,461 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:52,461 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:52,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-19 07:03:52,462 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:52,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:52,462 INFO L85 PathProgramCache]: Analyzing trace with hash 704259706, now seen corresponding path program 20 times [2022-01-19 07:03:52,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:52,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138972028] [2022-01-19 07:03:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:52,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:52,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:52,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138972028] [2022-01-19 07:03:52,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138972028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:52,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:52,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:03:52,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164935726] [2022-01-19 07:03:52,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:52,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:03:52,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:52,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:03:52,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:03:52,530 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 07:03:52,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1236 places, 1137 transitions, 20419 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:52,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:52,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 07:03:52,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:57,089 INFO L129 PetriNetUnfolder]: 1891/10916 cut-off events. [2022-01-19 07:03:57,089 INFO L130 PetriNetUnfolder]: For 152977/153148 co-relation queries the response was YES. [2022-01-19 07:03:57,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53795 conditions, 10916 events. 1891/10916 cut-off events. For 152977/153148 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 154121 event pairs, 578 based on Foata normal form. 13/10738 useless extension candidates. Maximal degree in co-relation 53418. Up to 2632 conditions per place. [2022-01-19 07:03:57,395 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 605 selfloop transitions, 138 changer transitions 25/1179 dead transitions. [2022-01-19 07:03:57,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1250 places, 1179 transitions, 22357 flow [2022-01-19 07:03:57,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 07:03:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 07:03:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4268 transitions. [2022-01-19 07:03:57,397 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2022-01-19 07:03:57,397 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4268 transitions. [2022-01-19 07:03:57,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4268 transitions. [2022-01-19 07:03:57,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:57,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4268 transitions. [2022-01-19 07:03:57,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 251.05882352941177) internal successors, (4268), 17 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:57,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:57,402 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:57,402 INFO L186 Difference]: Start difference. First operand has 1236 places, 1137 transitions, 20419 flow. Second operand 17 states and 4268 transitions. [2022-01-19 07:03:57,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1250 places, 1179 transitions, 22357 flow [2022-01-19 07:03:59,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1246 places, 1179 transitions, 22167 flow, removed 57 selfloop flow, removed 4 redundant places. [2022-01-19 07:03:59,475 INFO L242 Difference]: Finished difference. Result has 1253 places, 1145 transitions, 20768 flow [2022-01-19 07:03:59,476 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20235, PETRI_DIFFERENCE_MINUEND_PLACES=1230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20768, PETRI_PLACES=1253, PETRI_TRANSITIONS=1145} [2022-01-19 07:03:59,476 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 997 predicate places. [2022-01-19 07:03:59,476 INFO L470 AbstractCegarLoop]: Abstraction has has 1253 places, 1145 transitions, 20768 flow [2022-01-19 07:03:59,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:59,476 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:59,477 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:03:59,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-19 07:03:59,477 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:03:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2038128082, now seen corresponding path program 1 times [2022-01-19 07:03:59,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:59,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642455255] [2022-01-19 07:03:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:59,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:03:59,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:59,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642455255] [2022-01-19 07:03:59,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642455255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:59,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:59,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:03:59,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800571509] [2022-01-19 07:03:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:59,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:03:59,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:03:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:03:59,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 07:03:59,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1253 places, 1145 transitions, 20768 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:03:59,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:59,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 07:03:59,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:02,947 INFO L129 PetriNetUnfolder]: 1030/9683 cut-off events. [2022-01-19 07:04:02,948 INFO L130 PetriNetUnfolder]: For 131408/132185 co-relation queries the response was YES. [2022-01-19 07:04:03,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43541 conditions, 9683 events. 1030/9683 cut-off events. For 131408/132185 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 140130 event pairs, 25 based on Foata normal form. 22/9447 useless extension candidates. Maximal degree in co-relation 43160. Up to 538 conditions per place. [2022-01-19 07:04:03,223 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 15 selfloop transitions, 4 changer transitions 0/1152 dead transitions. [2022-01-19 07:04:03,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1253 places, 1152 transitions, 20825 flow [2022-01-19 07:04:03,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:04:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:04:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 07:04:03,225 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 07:04:03,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 07:04:03,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 07:04:03,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:03,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 07:04:03,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 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) [2022-01-19 07:04:03,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:03,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:03,226 INFO L186 Difference]: Start difference. First operand has 1253 places, 1145 transitions, 20768 flow. Second operand 3 states and 816 transitions. [2022-01-19 07:04:03,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1253 places, 1152 transitions, 20825 flow [2022-01-19 07:04:04,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1250 places, 1152 transitions, 20648 flow, removed 52 selfloop flow, removed 3 redundant places. [2022-01-19 07:04:04,933 INFO L242 Difference]: Finished difference. Result has 1252 places, 1147 transitions, 20619 flow [2022-01-19 07:04:04,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20591, PETRI_DIFFERENCE_MINUEND_PLACES=1248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20619, PETRI_PLACES=1252, PETRI_TRANSITIONS=1147} [2022-01-19 07:04:04,934 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 996 predicate places. [2022-01-19 07:04:04,934 INFO L470 AbstractCegarLoop]: Abstraction has has 1252 places, 1147 transitions, 20619 flow [2022-01-19 07:04:04,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:04,934 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:04,935 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:04,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-19 07:04:04,935 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1109948976, now seen corresponding path program 2 times [2022-01-19 07:04:04,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379367302] [2022-01-19 07:04:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:04,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:04,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379367302] [2022-01-19 07:04:04,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379367302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:04,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:04,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:04:04,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112456236] [2022-01-19 07:04:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:04,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:04:04,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:04:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:04:04,954 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 07:04:04,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1252 places, 1147 transitions, 20619 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:04,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:04,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 07:04:04,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:07,761 INFO L129 PetriNetUnfolder]: 864/8186 cut-off events. [2022-01-19 07:04:07,761 INFO L130 PetriNetUnfolder]: For 105249/106012 co-relation queries the response was YES. [2022-01-19 07:04:07,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36015 conditions, 8186 events. 864/8186 cut-off events. For 105249/106012 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 114130 event pairs, 23 based on Foata normal form. 37/8007 useless extension candidates. Maximal degree in co-relation 35635. Up to 422 conditions per place. [2022-01-19 07:04:07,987 INFO L132 encePairwiseOnDemand]: 282/286 looper letters, 19 selfloop transitions, 2 changer transitions 0/1154 dead transitions. [2022-01-19 07:04:07,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1254 places, 1154 transitions, 20684 flow [2022-01-19 07:04:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:04:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:04:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 07:04:07,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 07:04:07,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 07:04:07,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 07:04:07,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:07,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 07:04:07,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 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) [2022-01-19 07:04:07,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:07,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:07,989 INFO L186 Difference]: Start difference. First operand has 1252 places, 1147 transitions, 20619 flow. Second operand 3 states and 816 transitions. [2022-01-19 07:04:07,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1254 places, 1154 transitions, 20684 flow [2022-01-19 07:04:09,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1252 places, 1154 transitions, 20668 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 07:04:09,386 INFO L242 Difference]: Finished difference. Result has 1254 places, 1149 transitions, 20627 flow [2022-01-19 07:04:09,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20603, PETRI_DIFFERENCE_MINUEND_PLACES=1250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20627, PETRI_PLACES=1254, PETRI_TRANSITIONS=1149} [2022-01-19 07:04:09,387 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 998 predicate places. [2022-01-19 07:04:09,387 INFO L470 AbstractCegarLoop]: Abstraction has has 1254 places, 1149 transitions, 20627 flow [2022-01-19 07:04:09,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:09,387 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:09,387 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:09,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-19 07:04:09,387 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1357903948, now seen corresponding path program 1 times [2022-01-19 07:04:09,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:09,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059015351] [2022-01-19 07:04:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:09,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:09,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:09,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059015351] [2022-01-19 07:04:09,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059015351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:09,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:09,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:04:09,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693580085] [2022-01-19 07:04:09,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:09,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:04:09,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:09,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:04:09,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:04:09,410 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 07:04:09,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1254 places, 1149 transitions, 20627 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:09,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:09,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 07:04:09,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:12,897 INFO L129 PetriNetUnfolder]: 977/10078 cut-off events. [2022-01-19 07:04:12,897 INFO L130 PetriNetUnfolder]: For 111108/111957 co-relation queries the response was YES. [2022-01-19 07:04:13,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40201 conditions, 10078 events. 977/10078 cut-off events. For 111108/111957 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 144314 event pairs, 66 based on Foata normal form. 101/9811 useless extension candidates. Maximal degree in co-relation 39820. Up to 561 conditions per place. [2022-01-19 07:04:13,166 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 4 changer transitions 2/1157 dead transitions. [2022-01-19 07:04:13,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1256 places, 1157 transitions, 20695 flow [2022-01-19 07:04:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:04:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:04:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 07:04:13,167 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 07:04:13,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 07:04:13,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 07:04:13,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:13,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 07:04:13,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:13,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:13,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:13,168 INFO L186 Difference]: Start difference. First operand has 1254 places, 1149 transitions, 20627 flow. Second operand 3 states and 811 transitions. [2022-01-19 07:04:13,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1256 places, 1157 transitions, 20695 flow [2022-01-19 07:04:14,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1255 places, 1157 transitions, 20689 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 07:04:14,715 INFO L242 Difference]: Finished difference. Result has 1257 places, 1151 transitions, 20653 flow [2022-01-19 07:04:14,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20621, PETRI_DIFFERENCE_MINUEND_PLACES=1253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20653, PETRI_PLACES=1257, PETRI_TRANSITIONS=1151} [2022-01-19 07:04:14,716 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1001 predicate places. [2022-01-19 07:04:14,716 INFO L470 AbstractCegarLoop]: Abstraction has has 1257 places, 1151 transitions, 20653 flow [2022-01-19 07:04:14,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:14,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:14,716 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:14,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-19 07:04:14,717 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1001247616, now seen corresponding path program 1 times [2022-01-19 07:04:14,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:14,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33964702] [2022-01-19 07:04:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:14,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:14,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:14,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33964702] [2022-01-19 07:04:14,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33964702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:14,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:14,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:04:14,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035885204] [2022-01-19 07:04:14,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:14,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:04:14,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:14,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:04:14,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:04:14,737 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 07:04:14,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1257 places, 1151 transitions, 20653 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:14,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:14,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 07:04:14,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:17,920 INFO L129 PetriNetUnfolder]: 946/9148 cut-off events. [2022-01-19 07:04:17,920 INFO L130 PetriNetUnfolder]: For 109917/110725 co-relation queries the response was YES. [2022-01-19 07:04:18,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38561 conditions, 9148 events. 946/9148 cut-off events. For 109917/110725 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 128920 event pairs, 48 based on Foata normal form. 77/8954 useless extension candidates. Maximal degree in co-relation 38179. Up to 545 conditions per place. [2022-01-19 07:04:18,189 INFO L132 encePairwiseOnDemand]: 276/286 looper letters, 22 selfloop transitions, 6 changer transitions 0/1159 dead transitions. [2022-01-19 07:04:18,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1259 places, 1159 transitions, 20737 flow [2022-01-19 07:04:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:04:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:04:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 07:04:18,190 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 07:04:18,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 07:04:18,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 07:04:18,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:18,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 07:04:18,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:18,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:18,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:18,191 INFO L186 Difference]: Start difference. First operand has 1257 places, 1151 transitions, 20653 flow. Second operand 3 states and 811 transitions. [2022-01-19 07:04:18,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1259 places, 1159 transitions, 20737 flow [2022-01-19 07:04:19,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1258 places, 1159 transitions, 20733 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 07:04:19,855 INFO L242 Difference]: Finished difference. Result has 1260 places, 1155 transitions, 20705 flow [2022-01-19 07:04:19,856 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20649, PETRI_DIFFERENCE_MINUEND_PLACES=1256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20705, PETRI_PLACES=1260, PETRI_TRANSITIONS=1155} [2022-01-19 07:04:19,856 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1004 predicate places. [2022-01-19 07:04:19,856 INFO L470 AbstractCegarLoop]: Abstraction has has 1260 places, 1155 transitions, 20705 flow [2022-01-19 07:04:19,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:19,857 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:19,857 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:19,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-19 07:04:19,857 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1396385364, now seen corresponding path program 1 times [2022-01-19 07:04:19,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:19,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829320007] [2022-01-19 07:04:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:19,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:19,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:19,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829320007] [2022-01-19 07:04:19,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829320007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:19,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:19,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:04:19,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851165212] [2022-01-19 07:04:19,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:19,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:04:19,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:04:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:04:19,904 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 286 [2022-01-19 07:04:19,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1260 places, 1155 transitions, 20705 flow. Second operand has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:19,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:19,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 286 [2022-01-19 07:04:19,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:24,313 INFO L129 PetriNetUnfolder]: 1235/11962 cut-off events. [2022-01-19 07:04:24,314 INFO L130 PetriNetUnfolder]: For 153387/155476 co-relation queries the response was YES. [2022-01-19 07:04:24,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51798 conditions, 11962 events. 1235/11962 cut-off events. For 153387/155476 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 170538 event pairs, 50 based on Foata normal form. 176/11916 useless extension candidates. Maximal degree in co-relation 51415. Up to 713 conditions per place. [2022-01-19 07:04:24,626 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 45 selfloop transitions, 9 changer transitions 11/1191 dead transitions. [2022-01-19 07:04:24,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1274 places, 1191 transitions, 20934 flow [2022-01-19 07:04:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 07:04:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 07:04:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3770 transitions. [2022-01-19 07:04:24,627 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2022-01-19 07:04:24,628 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3770 transitions. [2022-01-19 07:04:24,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3770 transitions. [2022-01-19 07:04:24,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:24,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3770 transitions. [2022-01-19 07:04:24,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 251.33333333333334) internal successors, (3770), 15 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:24,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:24,632 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:24,632 INFO L186 Difference]: Start difference. First operand has 1260 places, 1155 transitions, 20705 flow. Second operand 15 states and 3770 transitions. [2022-01-19 07:04:24,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1274 places, 1191 transitions, 20934 flow [2022-01-19 07:04:26,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1272 places, 1191 transitions, 20914 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 07:04:26,537 INFO L242 Difference]: Finished difference. Result has 1283 places, 1160 transitions, 20745 flow [2022-01-19 07:04:26,538 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20685, PETRI_DIFFERENCE_MINUEND_PLACES=1258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20745, PETRI_PLACES=1283, PETRI_TRANSITIONS=1160} [2022-01-19 07:04:26,538 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1027 predicate places. [2022-01-19 07:04:26,538 INFO L470 AbstractCegarLoop]: Abstraction has has 1283 places, 1160 transitions, 20745 flow [2022-01-19 07:04:26,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:26,538 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:26,538 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:26,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-19 07:04:26,538 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:26,539 INFO L85 PathProgramCache]: Analyzing trace with hash 958013994, now seen corresponding path program 1 times [2022-01-19 07:04:26,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:26,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368011732] [2022-01-19 07:04:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:26,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:26,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368011732] [2022-01-19 07:04:26,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368011732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:26,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:04:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138475334] [2022-01-19 07:04:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:26,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:04:26,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:04:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:04:26,652 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:04:26,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1283 places, 1160 transitions, 20745 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:26,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:26,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:04:26,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:42,038 INFO L129 PetriNetUnfolder]: 10980/32620 cut-off events. [2022-01-19 07:04:42,038 INFO L130 PetriNetUnfolder]: For 349372/349687 co-relation queries the response was YES. [2022-01-19 07:04:44,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136913 conditions, 32620 events. 10980/32620 cut-off events. For 349372/349687 co-relation queries the response was YES. Maximal size of possible extension queue 2678. Compared 450283 event pairs, 6839 based on Foata normal form. 51/30435 useless extension candidates. Maximal degree in co-relation 136519. Up to 18732 conditions per place. [2022-01-19 07:04:44,498 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 884 selfloop transitions, 90 changer transitions 58/1446 dead transitions. [2022-01-19 07:04:44,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1333 places, 1446 transitions, 24846 flow [2022-01-19 07:04:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-19 07:04:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-01-19 07:04:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 13825 transitions. [2022-01-19 07:04:44,504 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8334338075717386 [2022-01-19 07:04:44,504 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 13825 transitions. [2022-01-19 07:04:44,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 13825 transitions. [2022-01-19 07:04:44,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:44,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 13825 transitions. [2022-01-19 07:04:44,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 238.36206896551724) internal successors, (13825), 58 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:44,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:44,519 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:44,519 INFO L186 Difference]: Start difference. First operand has 1283 places, 1160 transitions, 20745 flow. Second operand 58 states and 13825 transitions. [2022-01-19 07:04:44,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1333 places, 1446 transitions, 24846 flow [2022-01-19 07:04:48,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1328 places, 1446 transitions, 24825 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-01-19 07:04:48,717 INFO L242 Difference]: Finished difference. Result has 1380 places, 1249 transitions, 21643 flow [2022-01-19 07:04:48,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20732, PETRI_DIFFERENCE_MINUEND_PLACES=1271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=21643, PETRI_PLACES=1380, PETRI_TRANSITIONS=1249} [2022-01-19 07:04:48,718 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1124 predicate places. [2022-01-19 07:04:48,718 INFO L470 AbstractCegarLoop]: Abstraction has has 1380 places, 1249 transitions, 21643 flow [2022-01-19 07:04:48,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:48,718 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:48,718 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:04:48,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-19 07:04:48,719 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:04:48,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:48,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1933941778, now seen corresponding path program 1 times [2022-01-19 07:04:48,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:48,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569263046] [2022-01-19 07:04:48,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:48,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:04:48,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569263046] [2022-01-19 07:04:48,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569263046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:48,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:48,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:04:48,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463094480] [2022-01-19 07:04:48,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:48,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:04:48,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:48,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:04:48,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:04:48,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:04:48,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1380 places, 1249 transitions, 21643 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:04:48,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:48,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:04:48,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:05:07,499 INFO L129 PetriNetUnfolder]: 11680/34679 cut-off events. [2022-01-19 07:05:07,499 INFO L130 PetriNetUnfolder]: For 491827/492152 co-relation queries the response was YES. [2022-01-19 07:05:12,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181509 conditions, 34679 events. 11680/34679 cut-off events. For 491827/492152 co-relation queries the response was YES. Maximal size of possible extension queue 2860. Compared 479075 event pairs, 4623 based on Foata normal form. 65/32473 useless extension candidates. Maximal degree in co-relation 181067. Up to 15620 conditions per place. [2022-01-19 07:05:12,506 INFO L132 encePairwiseOnDemand]: 263/286 looper letters, 607 selfloop transitions, 164 changer transitions 512/1522 dead transitions. [2022-01-19 07:05:12,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1411 places, 1522 transitions, 27230 flow [2022-01-19 07:05:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 07:05:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 07:05:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 8197 transitions. [2022-01-19 07:05:12,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.84296585767174 [2022-01-19 07:05:12,510 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 8197 transitions. [2022-01-19 07:05:12,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 8197 transitions. [2022-01-19 07:05:12,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:05:12,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 8197 transitions. [2022-01-19 07:05:12,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 241.08823529411765) internal successors, (8197), 34 states have internal predecessors, (8197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:12,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:12,519 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:12,519 INFO L186 Difference]: Start difference. First operand has 1380 places, 1249 transitions, 21643 flow. Second operand 34 states and 8197 transitions. [2022-01-19 07:05:12,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1411 places, 1522 transitions, 27230 flow [2022-01-19 07:05:20,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1409 places, 1522 transitions, 26916 flow, removed 157 selfloop flow, removed 2 redundant places. [2022-01-19 07:05:20,051 INFO L242 Difference]: Finished difference. Result has 1439 places, 896 transitions, 13786 flow [2022-01-19 07:05:20,051 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=21373, PETRI_DIFFERENCE_MINUEND_PLACES=1376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=13786, PETRI_PLACES=1439, PETRI_TRANSITIONS=896} [2022-01-19 07:05:20,052 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1183 predicate places. [2022-01-19 07:05:20,052 INFO L470 AbstractCegarLoop]: Abstraction has has 1439 places, 896 transitions, 13786 flow [2022-01-19 07:05:20,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:20,052 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:05:20,052 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:05:20,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-19 07:05:20,052 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:05:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:05:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 935926426, now seen corresponding path program 1 times [2022-01-19 07:05:20,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:05:20,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574735755] [2022-01-19 07:05:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:05:20,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:05:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:05:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:05:20,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:05:20,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574735755] [2022-01-19 07:05:20,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574735755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:05:20,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:05:20,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:05:20,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134926981] [2022-01-19 07:05:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:05:20,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:05:20,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:05:20,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:05:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:05:20,077 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 07:05:20,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1439 places, 896 transitions, 13786 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:20,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:05:20,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 07:05:20,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:05:25,350 INFO L129 PetriNetUnfolder]: 1735/11819 cut-off events. [2022-01-19 07:05:25,350 INFO L130 PetriNetUnfolder]: For 207311/208965 co-relation queries the response was YES. [2022-01-19 07:05:25,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63147 conditions, 11819 events. 1735/11819 cut-off events. For 207311/208965 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 158953 event pairs, 346 based on Foata normal form. 170/11503 useless extension candidates. Maximal degree in co-relation 62676. Up to 1401 conditions per place. [2022-01-19 07:05:25,775 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 19 selfloop transitions, 3 changer transitions 0/904 dead transitions. [2022-01-19 07:05:25,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1133 places, 904 transitions, 13851 flow [2022-01-19 07:05:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:05:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:05:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 07:05:25,776 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 07:05:25,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 07:05:25,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 07:05:25,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:05:25,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 07:05:25,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:25,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:25,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:25,777 INFO L186 Difference]: Start difference. First operand has 1439 places, 896 transitions, 13786 flow. Second operand 3 states and 814 transitions. [2022-01-19 07:05:25,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1133 places, 904 transitions, 13851 flow [2022-01-19 07:05:28,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 904 transitions, 12128 flow, removed 700 selfloop flow, removed 124 redundant places. [2022-01-19 07:05:28,607 INFO L242 Difference]: Finished difference. Result has 1011 places, 899 transitions, 12093 flow [2022-01-19 07:05:28,608 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12063, PETRI_DIFFERENCE_MINUEND_PLACES=1007, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=893, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12093, PETRI_PLACES=1011, PETRI_TRANSITIONS=899} [2022-01-19 07:05:28,608 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 755 predicate places. [2022-01-19 07:05:28,608 INFO L470 AbstractCegarLoop]: Abstraction has has 1011 places, 899 transitions, 12093 flow [2022-01-19 07:05:28,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:28,609 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:05:28,609 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:05:28,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-19 07:05:28,609 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:05:28,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:05:28,609 INFO L85 PathProgramCache]: Analyzing trace with hash 782012990, now seen corresponding path program 2 times [2022-01-19 07:05:28,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:05:28,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418676366] [2022-01-19 07:05:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:05:28,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:05:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:05:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:05:28,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:05:28,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418676366] [2022-01-19 07:05:28,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418676366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:05:28,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:05:28,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:05:28,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324157867] [2022-01-19 07:05:28,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:05:28,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:05:28,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:05:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:05:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:05:28,631 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 07:05:28,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1011 places, 899 transitions, 12093 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:28,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:05:28,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 07:05:28,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:05:32,967 INFO L129 PetriNetUnfolder]: 1686/11920 cut-off events. [2022-01-19 07:05:32,967 INFO L130 PetriNetUnfolder]: For 133166/134351 co-relation queries the response was YES. [2022-01-19 07:05:33,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53404 conditions, 11920 events. 1686/11920 cut-off events. For 133166/134351 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 159752 event pairs, 398 based on Foata normal form. 181/11634 useless extension candidates. Maximal degree in co-relation 53045. Up to 1219 conditions per place. [2022-01-19 07:05:33,324 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 5 changer transitions 0/907 dead transitions. [2022-01-19 07:05:33,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1013 places, 907 transitions, 12170 flow [2022-01-19 07:05:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:05:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:05:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 07:05:33,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 07:05:33,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 07:05:33,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 07:05:33,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:05:33,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 07:05:33,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:33,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:33,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:33,326 INFO L186 Difference]: Start difference. First operand has 1011 places, 899 transitions, 12093 flow. Second operand 3 states and 814 transitions. [2022-01-19 07:05:33,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1013 places, 907 transitions, 12170 flow [2022-01-19 07:05:35,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1011 places, 907 transitions, 12151 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-01-19 07:05:35,115 INFO L242 Difference]: Finished difference. Result has 1013 places, 902 transitions, 12118 flow [2022-01-19 07:05:35,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12074, PETRI_DIFFERENCE_MINUEND_PLACES=1009, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12118, PETRI_PLACES=1013, PETRI_TRANSITIONS=902} [2022-01-19 07:05:35,116 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 757 predicate places. [2022-01-19 07:05:35,116 INFO L470 AbstractCegarLoop]: Abstraction has has 1013 places, 902 transitions, 12118 flow [2022-01-19 07:05:35,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:35,116 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:05:35,116 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:05:35,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-19 07:05:35,116 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:05:35,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:05:35,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1843078578, now seen corresponding path program 2 times [2022-01-19 07:05:35,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:05:35,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619732042] [2022-01-19 07:05:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:05:35,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:05:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:05:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:05:35,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:05:35,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619732042] [2022-01-19 07:05:35,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619732042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:05:35,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:05:35,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:05:35,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040711556] [2022-01-19 07:05:35,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:05:35,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:05:35,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:05:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:05:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:05:35,217 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:05:35,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1013 places, 902 transitions, 12118 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:35,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:05:35,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:05:35,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:05:48,433 INFO L129 PetriNetUnfolder]: 10121/30175 cut-off events. [2022-01-19 07:05:48,433 INFO L130 PetriNetUnfolder]: For 396848/398074 co-relation queries the response was YES. [2022-01-19 07:05:51,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159880 conditions, 30175 events. 10121/30175 cut-off events. For 396848/398074 co-relation queries the response was YES. Maximal size of possible extension queue 2763. Compared 413645 event pairs, 5772 based on Foata normal form. 6/28240 useless extension candidates. Maximal degree in co-relation 159521. Up to 17092 conditions per place. [2022-01-19 07:05:51,724 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 812 selfloop transitions, 137 changer transitions 62/1256 dead transitions. [2022-01-19 07:05:51,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1070 places, 1256 transitions, 17254 flow [2022-01-19 07:05:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-19 07:05:51,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-01-19 07:05:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 13829 transitions. [2022-01-19 07:05:51,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8336749457439112 [2022-01-19 07:05:51,730 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 13829 transitions. [2022-01-19 07:05:51,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 13829 transitions. [2022-01-19 07:05:51,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:05:51,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 13829 transitions. [2022-01-19 07:05:51,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 238.43103448275863) internal successors, (13829), 58 states have internal predecessors, (13829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:51,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:51,909 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:51,909 INFO L186 Difference]: Start difference. First operand has 1013 places, 902 transitions, 12118 flow. Second operand 58 states and 13829 transitions. [2022-01-19 07:05:51,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1070 places, 1256 transitions, 17254 flow [2022-01-19 07:05:56,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1068 places, 1256 transitions, 17238 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-01-19 07:05:56,595 INFO L242 Difference]: Finished difference. Result has 1119 places, 991 transitions, 13696 flow [2022-01-19 07:05:56,595 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12102, PETRI_DIFFERENCE_MINUEND_PLACES=1011, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=13696, PETRI_PLACES=1119, PETRI_TRANSITIONS=991} [2022-01-19 07:05:56,596 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 863 predicate places. [2022-01-19 07:05:56,596 INFO L470 AbstractCegarLoop]: Abstraction has has 1119 places, 991 transitions, 13696 flow [2022-01-19 07:05:56,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:56,596 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:05:56,596 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:05:56,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-19 07:05:56,596 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:05:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:05:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash -552655926, now seen corresponding path program 3 times [2022-01-19 07:05:56,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:05:56,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666758785] [2022-01-19 07:05:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:05:56,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:05:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:05:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:05:56,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:05:56,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666758785] [2022-01-19 07:05:56,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666758785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:05:56,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:05:56,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:05:56,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023431175] [2022-01-19 07:05:56,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:05:56,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:05:56,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:05:56,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:05:56,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:05:56,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:05:56,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1119 places, 991 transitions, 13696 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:05:56,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:05:56,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:05:56,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:06:12,146 INFO L129 PetriNetUnfolder]: 10667/31677 cut-off events. [2022-01-19 07:06:12,146 INFO L130 PetriNetUnfolder]: For 487416/488641 co-relation queries the response was YES. [2022-01-19 07:06:16,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182553 conditions, 31677 events. 10667/31677 cut-off events. For 487416/488641 co-relation queries the response was YES. Maximal size of possible extension queue 2882. Compared 434811 event pairs, 6131 based on Foata normal form. 28/29688 useless extension candidates. Maximal degree in co-relation 182143. Up to 17565 conditions per place. [2022-01-19 07:06:16,326 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 781 selfloop transitions, 116 changer transitions 21/1163 dead transitions. [2022-01-19 07:06:16,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1144 places, 1163 transitions, 18023 flow [2022-01-19 07:06:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-19 07:06:16,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-01-19 07:06:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 6716 transitions. [2022-01-19 07:06:16,331 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8386613386613386 [2022-01-19 07:06:16,331 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 6716 transitions. [2022-01-19 07:06:16,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 6716 transitions. [2022-01-19 07:06:16,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:06:16,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 6716 transitions. [2022-01-19 07:06:16,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 239.85714285714286) internal successors, (6716), 28 states have internal predecessors, (6716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:16,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 286.0) internal successors, (8294), 29 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:16,339 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 286.0) internal successors, (8294), 29 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:16,339 INFO L186 Difference]: Start difference. First operand has 1119 places, 991 transitions, 13696 flow. Second operand 28 states and 6716 transitions. [2022-01-19 07:06:16,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1144 places, 1163 transitions, 18023 flow [2022-01-19 07:06:24,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1142 places, 1163 transitions, 17345 flow, removed 339 selfloop flow, removed 2 redundant places. [2022-01-19 07:06:24,143 INFO L242 Difference]: Finished difference. Result has 1159 places, 1045 transitions, 14495 flow [2022-01-19 07:06:24,143 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13126, PETRI_DIFFERENCE_MINUEND_PLACES=1115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=991, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=909, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=14495, PETRI_PLACES=1159, PETRI_TRANSITIONS=1045} [2022-01-19 07:06:24,144 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 903 predicate places. [2022-01-19 07:06:24,144 INFO L470 AbstractCegarLoop]: Abstraction has has 1159 places, 1045 transitions, 14495 flow [2022-01-19 07:06:24,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:24,144 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:06:24,144 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:06:24,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-19 07:06:24,144 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:06:24,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:06:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1184901988, now seen corresponding path program 4 times [2022-01-19 07:06:24,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:06:24,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139958318] [2022-01-19 07:06:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:06:24,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:06:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:06:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:06:24,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:06:24,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139958318] [2022-01-19 07:06:24,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139958318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:06:24,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:06:24,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:06:24,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000215103] [2022-01-19 07:06:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:06:24,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:06:24,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:06:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:06:24,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:06:24,248 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:06:24,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1159 places, 1045 transitions, 14495 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:24,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:06:24,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:06:24,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:06:41,636 INFO L129 PetriNetUnfolder]: 11396/33473 cut-off events. [2022-01-19 07:06:41,636 INFO L130 PetriNetUnfolder]: For 467396/468651 co-relation queries the response was YES. [2022-01-19 07:06:45,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185278 conditions, 33473 events. 11396/33473 cut-off events. For 467396/468651 co-relation queries the response was YES. Maximal size of possible extension queue 3017. Compared 462516 event pairs, 6379 based on Foata normal form. 2/31449 useless extension candidates. Maximal degree in co-relation 184852. Up to 17716 conditions per place. [2022-01-19 07:06:45,121 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 865 selfloop transitions, 126 changer transitions 53/1289 dead transitions. [2022-01-19 07:06:45,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1207 places, 1289 transitions, 20251 flow [2022-01-19 07:06:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-19 07:06:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-01-19 07:06:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 12163 transitions. [2022-01-19 07:06:45,126 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8338818044700398 [2022-01-19 07:06:45,126 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 12163 transitions. [2022-01-19 07:06:45,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 12163 transitions. [2022-01-19 07:06:45,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:06:45,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 12163 transitions. [2022-01-19 07:06:45,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 238.49019607843138) internal successors, (12163), 51 states have internal predecessors, (12163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:45,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 286.0) internal successors, (14872), 52 states have internal predecessors, (14872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:45,140 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 286.0) internal successors, (14872), 52 states have internal predecessors, (14872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:45,140 INFO L186 Difference]: Start difference. First operand has 1159 places, 1045 transitions, 14495 flow. Second operand 51 states and 12163 transitions. [2022-01-19 07:06:45,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1207 places, 1289 transitions, 20251 flow [2022-01-19 07:06:51,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1205 places, 1289 transitions, 19213 flow, removed 519 selfloop flow, removed 2 redundant places. [2022-01-19 07:06:51,906 INFO L242 Difference]: Finished difference. Result has 1248 places, 1142 transitions, 16267 flow [2022-01-19 07:06:51,907 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13941, PETRI_DIFFERENCE_MINUEND_PLACES=1155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=16267, PETRI_PLACES=1248, PETRI_TRANSITIONS=1142} [2022-01-19 07:06:51,907 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 992 predicate places. [2022-01-19 07:06:51,907 INFO L470 AbstractCegarLoop]: Abstraction has has 1248 places, 1142 transitions, 16267 flow [2022-01-19 07:06:51,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:51,908 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:06:51,908 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:06:51,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-19 07:06:51,908 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:06:51,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:06:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2043682932, now seen corresponding path program 5 times [2022-01-19 07:06:51,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:06:51,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762933814] [2022-01-19 07:06:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:06:51,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:06:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:06:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:06:52,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:06:52,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762933814] [2022-01-19 07:06:52,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762933814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:06:52,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:06:52,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:06:52,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375197952] [2022-01-19 07:06:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:06:52,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:06:52,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:06:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:06:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:06:52,018 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:06:52,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1248 places, 1142 transitions, 16267 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:06:52,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:06:52,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:06:52,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:07:10,522 INFO L129 PetriNetUnfolder]: 11573/34062 cut-off events. [2022-01-19 07:07:10,522 INFO L130 PetriNetUnfolder]: For 517066/518323 co-relation queries the response was YES. [2022-01-19 07:07:14,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192877 conditions, 34062 events. 11573/34062 cut-off events. For 517066/518323 co-relation queries the response was YES. Maximal size of possible extension queue 3094. Compared 472409 event pairs, 6234 based on Foata normal form. 33/32092 useless extension candidates. Maximal degree in co-relation 192409. Up to 17947 conditions per place. [2022-01-19 07:07:14,964 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 869 selfloop transitions, 188 changer transitions 36/1338 dead transitions. [2022-01-19 07:07:14,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1287 places, 1338 transitions, 21469 flow [2022-01-19 07:07:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-19 07:07:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-01-19 07:07:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 10023 transitions. [2022-01-19 07:07:14,968 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8344155844155844 [2022-01-19 07:07:14,968 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 10023 transitions. [2022-01-19 07:07:14,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 10023 transitions. [2022-01-19 07:07:14,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:07:14,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 10023 transitions. [2022-01-19 07:07:14,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 238.64285714285714) internal successors, (10023), 42 states have internal predecessors, (10023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:14,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 286.0) internal successors, (12298), 43 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:14,979 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 286.0) internal successors, (12298), 43 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:14,979 INFO L186 Difference]: Start difference. First operand has 1248 places, 1142 transitions, 16267 flow. Second operand 42 states and 10023 transitions. [2022-01-19 07:07:14,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1287 places, 1338 transitions, 21469 flow [2022-01-19 07:07:22,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1285 places, 1338 transitions, 20065 flow, removed 702 selfloop flow, removed 2 redundant places. [2022-01-19 07:07:22,121 INFO L242 Difference]: Finished difference. Result has 1314 places, 1202 transitions, 16776 flow [2022-01-19 07:07:22,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15169, PETRI_DIFFERENCE_MINUEND_PLACES=1244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=16776, PETRI_PLACES=1314, PETRI_TRANSITIONS=1202} [2022-01-19 07:07:22,122 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1058 predicate places. [2022-01-19 07:07:22,122 INFO L470 AbstractCegarLoop]: Abstraction has has 1314 places, 1202 transitions, 16776 flow [2022-01-19 07:07:22,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:22,123 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:07:22,123 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:07:22,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-19 07:07:22,123 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:07:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:07:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash -352823078, now seen corresponding path program 6 times [2022-01-19 07:07:22,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:07:22,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751277721] [2022-01-19 07:07:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:07:22,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:07:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:07:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:07:22,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:07:22,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751277721] [2022-01-19 07:07:22,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751277721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:07:22,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:07:22,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:07:22,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064782649] [2022-01-19 07:07:22,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:07:22,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:07:22,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:07:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:07:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:07:22,228 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:07:22,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1314 places, 1202 transitions, 16776 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:22,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:07:22,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:07:22,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:07:42,095 INFO L129 PetriNetUnfolder]: 11808/34327 cut-off events. [2022-01-19 07:07:42,095 INFO L130 PetriNetUnfolder]: For 503833/505090 co-relation queries the response was YES. [2022-01-19 07:07:47,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193881 conditions, 34327 events. 11808/34327 cut-off events. For 503833/505090 co-relation queries the response was YES. Maximal size of possible extension queue 3122. Compared 476102 event pairs, 5805 based on Foata normal form. 1/32337 useless extension candidates. Maximal degree in co-relation 193385. Up to 17707 conditions per place. [2022-01-19 07:07:47,869 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 933 selfloop transitions, 222 changer transitions 22/1422 dead transitions. [2022-01-19 07:07:47,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1337 places, 1422 transitions, 22434 flow [2022-01-19 07:07:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 07:07:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 07:07:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 6242 transitions. [2022-01-19 07:07:47,871 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8394298009682625 [2022-01-19 07:07:47,872 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 6242 transitions. [2022-01-19 07:07:47,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 6242 transitions. [2022-01-19 07:07:47,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:07:47,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 6242 transitions. [2022-01-19 07:07:47,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 240.07692307692307) internal successors, (6242), 26 states have internal predecessors, (6242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:47,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:47,879 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:47,879 INFO L186 Difference]: Start difference. First operand has 1314 places, 1202 transitions, 16776 flow. Second operand 26 states and 6242 transitions. [2022-01-19 07:07:47,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1337 places, 1422 transitions, 22434 flow [2022-01-19 07:07:54,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1334 places, 1422 transitions, 21925 flow, removed 226 selfloop flow, removed 3 redundant places. [2022-01-19 07:07:54,986 INFO L242 Difference]: Finished difference. Result has 1351 places, 1240 transitions, 17611 flow [2022-01-19 07:07:54,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=16295, PETRI_DIFFERENCE_MINUEND_PLACES=1309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1004, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=17611, PETRI_PLACES=1351, PETRI_TRANSITIONS=1240} [2022-01-19 07:07:54,987 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1095 predicate places. [2022-01-19 07:07:54,987 INFO L470 AbstractCegarLoop]: Abstraction has has 1351 places, 1240 transitions, 17611 flow [2022-01-19 07:07:54,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:54,987 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:07:54,987 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:07:54,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-19 07:07:54,987 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:07:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:07:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 619421942, now seen corresponding path program 7 times [2022-01-19 07:07:54,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:07:54,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95118122] [2022-01-19 07:07:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:07:54,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:07:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:07:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:07:55,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:07:55,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95118122] [2022-01-19 07:07:55,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95118122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:07:55,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:07:55,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:07:55,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852853918] [2022-01-19 07:07:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:07:55,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:07:55,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:07:55,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:07:55,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:07:55,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:07:55,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1351 places, 1240 transitions, 17611 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:07:55,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:07:55,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:07:55,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:08:15,292 INFO L129 PetriNetUnfolder]: 12047/35533 cut-off events. [2022-01-19 07:08:15,293 INFO L130 PetriNetUnfolder]: For 550091/551405 co-relation queries the response was YES. [2022-01-19 07:08:20,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204088 conditions, 35533 events. 12047/35533 cut-off events. For 550091/551405 co-relation queries the response was YES. Maximal size of possible extension queue 3206. Compared 495913 event pairs, 5960 based on Foata normal form. 70/33605 useless extension candidates. Maximal degree in co-relation 203577. Up to 18123 conditions per place. [2022-01-19 07:08:20,785 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 947 selfloop transitions, 246 changer transitions 18/1456 dead transitions. [2022-01-19 07:08:20,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1374 places, 1456 transitions, 23655 flow [2022-01-19 07:08:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 07:08:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 07:08:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 6241 transitions. [2022-01-19 07:08:20,788 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8392953200645509 [2022-01-19 07:08:20,788 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 6241 transitions. [2022-01-19 07:08:20,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 6241 transitions. [2022-01-19 07:08:20,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:08:20,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 6241 transitions. [2022-01-19 07:08:20,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 240.03846153846155) internal successors, (6241), 26 states have internal predecessors, (6241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:20,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:20,794 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:20,794 INFO L186 Difference]: Start difference. First operand has 1351 places, 1240 transitions, 17611 flow. Second operand 26 states and 6241 transitions. [2022-01-19 07:08:20,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1374 places, 1456 transitions, 23655 flow [2022-01-19 07:08:28,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1371 places, 1456 transitions, 23023 flow, removed 286 selfloop flow, removed 3 redundant places. [2022-01-19 07:08:28,089 INFO L242 Difference]: Finished difference. Result has 1387 places, 1282 transitions, 18711 flow [2022-01-19 07:08:28,090 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=17156, PETRI_DIFFERENCE_MINUEND_PLACES=1346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1025, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=18711, PETRI_PLACES=1387, PETRI_TRANSITIONS=1282} [2022-01-19 07:08:28,091 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1131 predicate places. [2022-01-19 07:08:28,091 INFO L470 AbstractCegarLoop]: Abstraction has has 1387 places, 1282 transitions, 18711 flow [2022-01-19 07:08:28,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:28,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:08:28,091 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:08:28,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-19 07:08:28,091 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:08:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:08:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash -180174622, now seen corresponding path program 8 times [2022-01-19 07:08:28,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:08:28,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742340898] [2022-01-19 07:08:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:08:28,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:08:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:08:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:08:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:08:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742340898] [2022-01-19 07:08:28,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742340898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:08:28,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:08:28,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:08:28,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459545259] [2022-01-19 07:08:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:08:28,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:08:28,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:08:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:08:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:08:28,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:08:28,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1387 places, 1282 transitions, 18711 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:28,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:08:28,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:08:28,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:08:51,031 INFO L129 PetriNetUnfolder]: 12352/36490 cut-off events. [2022-01-19 07:08:51,031 INFO L130 PetriNetUnfolder]: For 588668/590008 co-relation queries the response was YES. [2022-01-19 07:08:56,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213596 conditions, 36490 events. 12352/36490 cut-off events. For 588668/590008 co-relation queries the response was YES. Maximal size of possible extension queue 3283. Compared 510457 event pairs, 6474 based on Foata normal form. 53/34518 useless extension candidates. Maximal degree in co-relation 213071. Up to 18203 conditions per place. [2022-01-19 07:08:57,186 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 974 selfloop transitions, 210 changer transitions 22/1451 dead transitions. [2022-01-19 07:08:57,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1413 places, 1451 transitions, 24043 flow [2022-01-19 07:08:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-19 07:08:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-01-19 07:08:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 6956 transitions. [2022-01-19 07:08:57,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8386785628164939 [2022-01-19 07:08:57,189 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 6956 transitions. [2022-01-19 07:08:57,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 6956 transitions. [2022-01-19 07:08:57,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:08:57,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 6956 transitions. [2022-01-19 07:08:57,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 239.86206896551724) internal successors, (6956), 29 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:57,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 286.0) internal successors, (8580), 30 states have internal predecessors, (8580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:57,197 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 286.0) internal successors, (8580), 30 states have internal predecessors, (8580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:08:57,197 INFO L186 Difference]: Start difference. First operand has 1387 places, 1282 transitions, 18711 flow. Second operand 29 states and 6956 transitions. [2022-01-19 07:08:57,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1413 places, 1451 transitions, 24043 flow [2022-01-19 07:09:05,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1410 places, 1451 transitions, 23516 flow, removed 241 selfloop flow, removed 3 redundant places. [2022-01-19 07:09:05,568 INFO L242 Difference]: Finished difference. Result has 1424 places, 1329 transitions, 19837 flow [2022-01-19 07:09:05,569 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=18230, PETRI_DIFFERENCE_MINUEND_PLACES=1382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=19837, PETRI_PLACES=1424, PETRI_TRANSITIONS=1329} [2022-01-19 07:09:05,569 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1168 predicate places. [2022-01-19 07:09:05,569 INFO L470 AbstractCegarLoop]: Abstraction has has 1424 places, 1329 transitions, 19837 flow [2022-01-19 07:09:05,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:09:05,570 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:09:05,570 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:09:05,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-19 07:09:05,570 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:09:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:09:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1216396218, now seen corresponding path program 9 times [2022-01-19 07:09:05,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:09:05,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931986728] [2022-01-19 07:09:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:09:05,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:09:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:09:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:09:05,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:09:05,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931986728] [2022-01-19 07:09:05,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931986728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:09:05,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:09:05,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 07:09:05,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582342069] [2022-01-19 07:09:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:09:05,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 07:09:05,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:09:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 07:09:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:09:05,670 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 07:09:05,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1424 places, 1329 transitions, 19837 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:09:05,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:09:05,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 07:09:05,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand